GTA

Airguns by Make and Model => Hatsan Airguns => Topic started by: Blowpipe Sam on April 22, 2025, 04:15:18 PM

Title: Hatsan Flash-R QE question
Post by: Blowpipe Sam on April 22, 2025, 04:15:18 PM
Does anyone have one of these?  I just ordered a refurb from Hatsan.  I checked out several videos on the gun and was satisfied that I was getting a good deal.  From what I saw in the videos the gun appears to have a synthetic receiver and pic rail.  I figured that is how they squeezed a regulator into it at this price point.  My experience with synthetic receivers was rocky at first but I've come to believe in them.  I was perusing the Hatsan USA specification for the Flash-R QE today and according to Hatsan the gun has an aluminum receiver and a combination Pic rail and 11mm dovetail scope mount.  My eyesight ain't great but I can't see a 11mm dovetail in their pictures and that does not look like an "Anodized Aluminum Receiver" to me.

What's the skinny?
Title: Re: Hatsan Flash-R QE question
Post by: Back_Roads on April 24, 2025, 09:37:46 AM
 I have the Jet1 , and the Vectis both have plastic receivers, no real issues, they seem solid.
Title: Re: Hatsan Flash-R QE question
Post by: Rocker1 on April 24, 2025, 09:44:06 AM
Sam i have one, have had it for several years, no complaints from me.  its a super accurate rifle lite weight , mine is 25 i get about 36 shots at 850s i did replace the baffles  when you get it let me know ill send you some 3d baffles.  David
Title: Re: Hatsan Flash-R QE question
Post by: HunterWhite on April 24, 2025, 10:06:20 AM
I had one as well. The rail is a pic but it also has a 3/8 or 11mm dovetail. It’s a light weight rifle that is very good for wood walking and off hand shooting. It shoots best about 30 FPE. I like the plastic stock just fine for weather resistance and I think the wood stock looks kind of goofy. I took the receiver apart to clean and moly lube the action. The only trouble was that the picatinny scope mounts that I was using would interfere with the dovetail. I replaced those mounts with a different manufacturer and it has been good for four or five years now. It was a good shooter so I gifted it to my brother.

Hunter
Title: Re: Hatsan Flash-R QE question
Post by: Blowpipe Sam on April 24, 2025, 01:18:19 PM
Thanks y’all.  I was pretty sure it had a solid reputation before I bought it. I looked at the pictures on the
Hatsan USA website and what I could see looked like a plastic receiver.  I just watched a pretty in depth video review on YouTube.  I paused the video on a good close up of the action and yeah, it looks like a metal receiver!  I wasn’t expecting that and if it is then kudos to Hatsan!  It should be here tomorrow so the mystery will be solved then.

Thank you David.  I remembered that someone was making replacement baffles (that work!) for the QE moderator.  I just couldn’t remember who.  I’ll PM you after I get the rifle
Title: Re: Hatsan Flash-R QE question
Post by: HunterWhite on April 24, 2025, 07:17:11 PM
I forgot to mention that the receiver is metal.
H.T.H.

Hunter 
Title: Re: Hatsan Flash-R QE question
Post by: Rat Sniper (AKA: PaulT58) on April 24, 2025, 10:08:37 PM
Mine arrived today, lots of plastic, but it's the heavy polymer, so it feels very solid.  The combo Pic/Dovetail rail is polymer, but it's very solid.  I aired mine up and shot 2 mags of 10.5 grain CPD's through it and it's making nice clover leafs at 35 yards!  It is loud though, so definitely take David up on his offer for his 3D baffles!  I've already sent him a PM to see if I can get a set as well.  For the price, I'm pretty impressed with it!
Title: Re: Hatsan Flash-R QE question
Post by: Blowpipe Sam on April 24, 2025, 10:20:45 PM
Well now I'm really excited! ;D  ;D
Title: Re: Hatsan Flash-R QE question
Post by: Rat Sniper (AKA: PaulT58) on April 25, 2025, 10:07:11 AM
Well...  It was fun while it lasted!  Checked the Flash-R this morning and it had zero air in the cylinder.  Topped it back off to 250 BAR and as soon as i released pressure in the whip, air started leaking out of the fill valve at the end of the cylinder, and I'm talking it came out as fast or faster than it went in!  I have the exploded view of the regular Flash, so I'll attempt to remove that end of the air cylinder and see if maybe the small o-ring in the valve assemble just blew.  If so, hopefully a spare was included.  If that doesn't work, I'll be contacted Hatsan about a replacement fill valve assembly.  So, all the pellet/slug testing I had planed for today just got put on the back burner!  >:(   :(   
Title: Re: Hatsan Flash-R QE question
Post by: Blowpipe Sam on April 25, 2025, 12:19:33 PM
Poop! >:(
Title: Re: Hatsan Flash-R QE question
Post by: Rat Sniper (AKA: PaulT58) on April 25, 2025, 12:44:49 PM
Well, the honeymoon is over and it didn't last long!  I was not able to separate the oil valve from the air cylinder, so looks like it will either go back or Hatsan will send replacement parts.  I sent they a Ticket through their online CS Portal this morning and am waiting for a reply.  I asked that they send replacement parts so I can do the repair myself, thus keeping an airgun that has a decent barrel and everything else seems to working quite well. 

https://youtube.com/shorts/TvSlY0R2C2U?feature=share

Here's a quick video of what I found this morning after it sat overnight after being topped off to 250 BAR.  The gauge was at zero this morning, this is after I attempted to fill it again (and found the leak) and after attempting to remove the valve from the air cylinder.

I was able to remove the air cylinder from the gun, so I'm hoping Hatsan will just send me a replacement aircylinger and fill valve assembly so I can get it back up and running again without having the hassle of boxing up the entire airgun, shipping it back and risk getting one that's not as nice (other than the leaking fill valve!
Title: Re: Hatsan Flash-R QE question
Post by: Blowpipe Sam on April 25, 2025, 01:26:42 PM
Hopefully that is not an endemic problem.  I think the odds are  good that Hatsan will send you the parts.  They’ve done things like that for me.
Mine arrives this afternoon and hopefully it won’t have any issues.
Title: Re: Hatsan Flash-R QE question
Post by: mikeyb on April 25, 2025, 05:09:25 PM
Threaded end-plug holding the fill-check-valve is likely secured with threadlocker. Heat with a hot-air gun until it is too hot to hold (~180-200deg F).

That temperature should not damage any soft-seals but will soften threadlocker.

Then breaking the threads loose should be much easier.
Title: Re: Hatsan Flash-R QE question
Post by: Rocker1 on April 25, 2025, 05:10:27 PM
 The gauge on my flash is i. The forarm its not on end of cylinder. David
Title: Re: Hatsan Flash-R QE question
Post by: avator on April 25, 2025, 05:26:38 PM
The gauge on my flash is i. The forarm its not on end of cylinder. David
Mine too... It looks like the same fill assembly except my gauge it on the bottom of the fore arm.
Title: Re: Hatsan Flash-R QE question
Post by: mikeyb on April 25, 2025, 05:29:39 PM
Flash-QE and FlashR-QE are two different rifles that share some parts.
Title: Re: Hatsan Flash-R QE question
Post by: avator on April 25, 2025, 05:35:04 PM
Flash-QE and FlashR-QE are two different rifles that share some parts.
I wonder would if the regulator work in our unregged Flash guns. Probably need the whole tube assembly because of the guage.
Title: Re: Hatsan Flash-R QE question
Post by: billygee on April 25, 2025, 05:51:47 PM
Flash-QE and FlashR-QE are two different rifles that share some parts.
I wonder would if the regulator work in our unregged Flash guns. Probably need the whole tube assembly because of the guage.

Also New Adventure Here

Just had a Referb Flash-R QE delivered yesterday
Have to say it is a Long Gun, having the 23" barrel.
noticing that there is a circular cut out in the forearm where the Flash manometer gauge must have gone.
Haven't started anything on it yet, just Following,

So far I hear even being QE it still has quite a Bark to it

Curiosity, has anyone opened it up for any regulator adjustments ?

Bill

Bill   
Title: Re: Hatsan Flash-R QE question
Post by: avator on April 25, 2025, 06:12:16 PM
Flash-QE and FlashR-QE are two different rifles that share some parts.
I wonder would if the regulator work in our unregged Flash guns. Probably need the whole tube assembly because of the guage.

Also New Adventure Here

Just had a Referb Flash-R QE delivered yesterday
Have to say it is a Long Gun, having the 23" barrel.
noticing that there is a circular cut out in the forearm where the Flash manometer gauge must have gone.
Haven't started anything on it yet, just Following,

So far I hear even being QE it still has quite a Bark to it

Curiosity, has anyone opened it up for any regulator adjustments ?

Bill

Bill
Have you ran it over the chrono to see if it even needs adjusting yet? Or to at least get some baseline numbers.
Title: Re: Hatsan Flash-R QE question
Post by: Blowpipe Sam on April 25, 2025, 06:44:30 PM
The brown van just dropped mine off.  The good, the bad, and the ugly.  I guess I'm never going to be a fan of Hatsan's styling.  This thing is coyote fugly!  It's long but not particularly heavy.  First impressions of the cocking lever are positive.  It is a synthetic receiver but this thing looks tough.  The Pic rail looks useable.  The 11 mm rail does not.  The stock is comfortable.  The single shot tray slips snuggly into place.  I don't have to put my face in front of the muzzle to read the pressure gauge.  The quality of the blued metal parts is what I've come to expect from Hatsan.  The trigger appears to be a quattro but the blade is plastic.  The hole in the forearm for the Flash's gauge is filled with a plug embossed with Hatsan's logo.  It came with all the usual accessories.  There are some marks on the Pic rail plastic that indicate that a scope was mounted.  It arrived in a single brown box, adequately swathed in bubble wrap with a refurb card from Hatsan that stated that the gun met Hatsan's 10 shot accuracy standard but no velocity figures.  It came filled to 2500 PSI.  I shot two H&N FTT through it and determined that it functions.  Now I'm gonna clean it and mount a scope
Title: Re: Hatsan Flash-R QE question
Post by: avator on April 25, 2025, 06:44:57 PM
Here is my non regulated gun for comparison.
Title: Re: Hatsan Flash-R QE question
Post by: Blowpipe Sam on April 25, 2025, 08:10:19 PM
Thanks Bill.  I'm shooting 20.06gr FTT but after twenty shots it's clear it likes heavier pellets.  I switched to the 25.39gr JSB Kings and the 15 yard group tightened to one small hole.  Tomorrow (if it's still holding air) I'll chronograph it.  I shot one magazine of ten to see how it would function and then maybe another 20 shots with the single shot tray.  The gauge has dropped from 2,500 PSI to about 1,800.  For my purposes the QE moderator works just fine.  It may sound loud to some folks but with a heavy pellet you won't hear it 100 yards away in the woods.  I stuck a huge old CenterPoint 4-16X40 on it.  The scope matches the proportions of the rifle.
Title: Re: Hatsan Flash-R QE question
Post by: Rat Sniper (AKA: PaulT58) on April 25, 2025, 08:27:35 PM
Flash-QE and FlashR-QE are two different rifles that share some parts.
I wonder would if the regulator work in our unregged Flash guns. Probably need the whole tube assembly because of the guage.

Also New Adventure Here

Just had a Referb Flash-R QE delivered yesterday
Have to say it is a Long Gun, having the 23" barrel.
noticing that there is a circular cut out in the forearm where the Flash manometer gauge must have gone.
Haven't started anything on it yet, just Following,

So far I hear even being QE it still has quite a Bark to it

Curiosity, has anyone opened it up for any regulator adjustments ?

Bill

Bill

From what I've read, the regulator is not adjustable.  I could see it when I had the air cylinder off trying to get the Fill Valve off and did not see any trace to adjust it.  I did not take it off to see if there were any adjustment on the inside.  It says it's set between 125-130 BAR, but I'm not sure how you'd actually know what it's set at or what it would be adjusted to if there were an adjustment, since there is no gauge for the regulated side.
Title: Re: Hatsan Flash-R QE question
Post by: Rat Sniper (AKA: PaulT58) on April 25, 2025, 08:34:48 PM
Thanks Bill.  I'm shooting 20.06gr FTT but after twenty shots it's clear it likes heavier pellets.  I switched to the 25.39gr JSB Kings and the 15 yard group tightened to one small hole.  Tomorrow (if it's still holding air) I'll chronograph it.  I shot one magazine of ten to see how it would function and then maybe another 20 shots with the single shot tray.  The gauge has dropped from 2,500 PSI to about 1,800.  For my purposes the QE moderator works just fine.  It may sound loud to some folks but with a heavy pellet you won't hear it 100 yards away in the woods.  I stuck a huge old CenterPoint 4-16X40 on it.  The scope matches the proportions of the rifle.

I hope yours hold air!  I think what happened to mine may be a fluke.  I'm still waiting to hear from Hatsan.  I may try using a heathen on it this weekend and see if I can get the fill valve off.  If so, it looks like it's just one 0-ring needed to fix it.  I may need to replace the larger o-ring that seals it to the air cylinder as well, if it gets damaged during the removal.  A project for another day...
Title: Re: Hatsan Flash-R QE question
Post by: billygee on April 25, 2025, 08:59:55 PM
Flash-QE and FlashR-QE are two different rifles that share some parts.
I wonder would if the regulator work in our unregged Flash guns. Probably need the whole tube assembly because of the guage.

Also New Adventure Here

Just had a Referb Flash-R QE delivered yesterday
Have to say it is a Long Gun, having the 23" barrel.
noticing that there is a circular cut out in the forearm where the Flash manometer gauge must have gone.
Haven't started anything on it yet, just Following,

So far I hear even being QE it still has quite a Bark to it

Curiosity, has anyone opened it up for any regulator adjustments ?

Bill

Bill
Have you ran it over the chrono to see if it even needs adjusting yet? Or to at least get some baseline numbers.

haven't started anything on it yet, just curious which version regulator they are using

Bill
Title: Re: Hatsan Flash-R QE question
Post by: billygee on April 25, 2025, 09:19:06 PM
Flash-QE and FlashR-QE are two different rifles that share some parts.
I wonder would if the regulator work in our unregged Flash guns. Probably need the whole tube assembly because of the guage.

Also New Adventure Here

Just had a Referb Flash-R QE delivered yesterday
Have to say it is a Long Gun, having the 23" barrel.
noticing that there is a circular cut out in the forearm where the Flash manometer gauge must have gone.
Haven't started anything on it yet, just Following,

So far I hear even being QE it still has quite a Bark to it

Curiosity, has anyone opened it up for any regulator adjustments ?

Bill

Bill

From what I've read, the regulator is not adjustable.  I could see it when I had the air cylinder off trying to get the Fill Valve off and did not see any trace to adjust it.  I did not take it off to see if there were any adjustment on the inside.  It says it's set between 125-130 BAR, but I'm not sure how you'd actually know what it's set at or what it would be adjusted to if there were an adjustment, since there is no gauge for the regulated side.

Paul

If they are using their AT44 (H) it's factory set at 125bar, and adjustable, which has to be removed to adjust,
also there is an early and a late version having to do with different design o-ring location

Bill
Title: Re: Hatsan Flash-R QE question
Post by: Rat Sniper (AKA: PaulT58) on April 25, 2025, 09:38:00 PM
Threaded end-plug holding the fill-check-valve is likely secured with threadlocker. Heat with a hot-air gun until it is too hot to hold (~180-200deg F).

That temperature should not damage any soft-seals but will soften threadlocker.

Then breaking the threads loose should be much easier.

Thank you!  I gave this a try, actually got too hot to touch and still could not break it loose!  I even had a probe in the fill port and that is a vice so it wouldn't turn and was using a rubber pipe wrench to try and loosen it and it still will not budge!  Gary the Gorilla at Hatsan must have put the Fill Valve on this one!  I'm done messing with it and will wait to hear from Hatsan.  Unfortunately, since it's already Friday evening with no reply, it will probably be sometime next week before I hear from them.  I'm hoping they will just send me the air cylinder and fill valve assembly and let ne send this one back in the same box.  It should be covered by warranty, so I'm hoping for the best!

Wasn't there a member here that worked for Hatsan?  I wonder if he's still a member?  I may be confusing he with he guy that works for Umarex...   If we do have a Hatsan Employee as a member here and anyone knows his username, please let me know.  Thanks...
Title: Re: Hatsan Flash-R QE question
Post by: Rat Sniper (AKA: PaulT58) on April 25, 2025, 09:41:48 PM
Flash-QE and FlashR-QE are two different rifles that share some parts.
I wonder would if the regulator work in our unregged Flash guns. Probably need the whole tube assembly because of the guage.

Also New Adventure Here

Just had a Referb Flash-R QE delivered yesterday
Have to say it is a Long Gun, having the 23" barrel.
noticing that there is a circular cut out in the forearm where the Flash manometer gauge must have gone.
Haven't started anything on it yet, just Following,

So far I hear even being QE it still has quite a Bark to it

Curiosity, has anyone opened it up for any regulator adjustments ?

Bill

Bill

From what I've read, the regulator is not adjustable.  I could see it when I had the air cylinder off trying to get the Fill Valve off and did not see any trace to adjust it.  I did not take it off to see if there were any adjustment on the inside.  It says it's set between 125-130 BAR, but I'm not sure how you'd actually know what it's set at or what it would be adjusted to if there were an adjustment, since there is no gauge for the regulated side.

Paul

If they are using their AT44 (H) it's factory set at 125bar, and adjustable, which has to be removed to adjust,
also there is an early and a late version having to do with different design o-ring location

Bill

Bill, here's a picture of the regulator.  It's attached as tight as the Fill Valve so I didn't attempt to muscle it off to see if there is an adjustment inside.
Title: Re: Hatsan Flash-R QE question
Post by: Blowpipe Sam on April 25, 2025, 09:44:08 PM
Paul.  I sincerely hope (for my sake as well as yours)  that your problem is a quick and easy fix. I don't know how you feel about the aesthetics of this rifle but while I don't think it's the ugliest thing Hatsan has ever produced it is recognizably a product of the Anatolian Iron Works.  Compared to another regulated budget PCP rifle, the Pinty carbine, the Flash-R QE looks like a crude collection of poorly matched after market parts.  If the Pinty carbine had been available in .25 caliber I would have been one of the first on that bus.
The Hatsan has its obvious short comings.  It is looooong!  It would not be fun to wrestle through some of the thickets I hunt in.  However, it seems monolithically built.  The ergonomics are excellent (if you are 6'6" and have arms like a gorilla like me).  Even with the monster CP scope it is surprisingly light.  The seat of my pants says it's powerful.  Pellets make a healthy smack when they impact the disc blades I armored my backstop with.  As always it took me too many pellets to zero the rifle.  This scope had previously resided on a springer with some mild droop so lots of elevation had to be cranked in.  Tomorrow Ill fine tune the zero and chronograph some pellets
Title: Re: Hatsan Flash-R QE question
Post by: avator on April 25, 2025, 10:09:30 PM
Carter...
That spreadsheet I posted is for my non regulated Flash. You should get several more shot from your regulated gun but I doubt you'll get the power that mine gets at the top of the bell curve. With an 18 gr pellet you should be in the 860 tom 880 fps range. That's just an estimate on my part.
I'll look a little closer at my other data.
Title: Re: Hatsan Flash-R QE question
Post by: Rat Sniper (AKA: PaulT58) on April 25, 2025, 10:14:51 PM
Yea, it's ugly, but at that price point, it's a pretty good deal!  That is if I get to keep this one and can repair it and get it operational.  My past experience with Hatsan CS has been generally positive, so I'm hoping that continues. 

It is longer than I expected it to be, which is why I have Rocker1 sending me some of his baffles.  With mine being .177, I suspect it's pushing pellets much faster than you .25!  The sheet that came with mine said it chronied at 1025 FPS shooting 9 grain pellets.  Mine died before I could get it on the chrony, but the 10.5 grain CPD's were making a pretty loud bark.  I had some of Rocker1's baffles laying around, but they were a tad smaller than the baffles that came it it, they were 20mm diameter, the OE Hatsan baffles are 22mm.  While they worked, they did gaus a significant POI shift which may have been for improper alignment.  But, while accuracy was negatively affected, the sound lever dropped significantly!  I suspect the proper sized baffles will improve accuracy while significantly reducing the sound output.  Also, the inside diameter of the OE Hatsan Baffles is probably around .35 caliber, typical one size fits all mentality!  The Rocker1 baffles were sized considerably smaller, probably .20-.22 caliber.  But, since the dang thing is so long, replacing baffles if the way to go.  Adding a LDC to the end of that thing would defeat the purpose of having an airgun, it'd be long enough to just smack whatever your after!  Also, if you remove the shroud completely, the end of the barrel is threaded 1/2UNF, so a LDC will screw right on if needed, but the QE Shroud provides a tensioned barrel and looks much better!   ;D
Title: Re: Hatsan Flash-R QE question
Post by: Rat Sniper (AKA: PaulT58) on April 25, 2025, 10:16:42 PM
Carter...
That spreadsheet I posted is for my non regulated Flash. You should get several more shot from your regulated gun but I doubt you'll get the power that mine gets at the top of the bell curve. With an 18 gr pellet you should be in the 860 tom 880 fps range. That's just an estimate on my part.
I'll look a little closer at my other data.

He's got a .25 caliber, so will probably be shooting the 25 grain pellets.  Which at 860 - 880 FPS would be packing quite a wallop!
Title: Re: Hatsan Flash-R QE question
Post by: avator on April 25, 2025, 10:22:33 PM
Carter...
That spreadsheet I posted is for my non regulated Flash. You should get several more shot from your regulated gun but I doubt you'll get the power that mine gets at the top of the bell curve. With an 18 gr pellet you should be in the 860 tom 880 fps range. That's just an estimate on my part.
I'll look a little closer at my other data.

He's got a .25 caliber, so will probably be shooting the 25 grain pellets.  Which at 860 - 880 FPS would be packing quite a wallop!
LOL... glad I saw your post before I hit send on mine... I had him all planed out based on .22.
But yeah, I get 862 from an 18.1 gr pellet at 2k wher I stopped my string.
I have never been inside this gun but I may be able to use the BStaley to flatten that curve some.
Title: Re: Hatsan Flash-R QE question
Post by: Blowpipe Sam on April 25, 2025, 10:40:10 PM
As I wrote, I've been shooting 20.06gr H&N FTT.  Once I generate some numbers  I'll be able to see any correlation to Bill's graph.  The actual values aren't as important as the trends.  I'm hoping for the velocities to be close though.  This thing has 22" of barrel after all.  Hatsan claims "up to 40 fpe".  A couple of reviewers have claimed more. 
Title: Re: Hatsan Flash-R QE question
Post by: avator on April 25, 2025, 10:44:30 PM
According to the spreadsheet I can tether my 60 minute tank to the gun at 2700 psi which is the average on my string (891 fps) and shoot all day at near 33 fpe. I'll post an accuracy group pic tomorrow but it was quite impressive today. The gun shoots way better than I can.
A 125 bar regulated .22 gun should get around 40 - 45 shots at around 29 fpe.
Title: Re: Hatsan Flash-R QE question
Post by: avator on April 25, 2025, 10:46:35 PM
As I wrote, I've been shooting 20.06gr H&N FTT.  Once I generate some numbers  I'll be able to see any correlation to Bill's graph.  The actual values aren't as important as the trends.  I'm hoping for the velocities to be close though.  This thing has 22" of barrel after all.  Hatsan claims "up to 40 fpe".  A couple of reviewers have claimed more.
Being a .25, I don't doubt that at all.
I can tether at 3k and get a good number of shots at 39 fpe.
Title: Re: Hatsan Flash-R QE question
Post by: Back_Roads on April 26, 2025, 08:39:03 AM
 A general rule of thumb regulated .25 cal. not brand specific will generate 850 fps with 25.3 gr pellets. any more power wanted might as well tune a non regulated version. or deal with lower regulated shot count, matching a non regulated shot count in the sweet spot.
Title: Re: Hatsan Flash-R QE question
Post by: billygee on April 26, 2025, 08:48:32 AM
Flash-QE and FlashR-QE are two different rifles that share some parts.
I wonder would if the regulator work in our unregged Flash guns. Probably need the whole tube assembly because of the guage.

Also New Adventure Here

Just had a Referb Flash-R QE delivered yesterday
Have to say it is a Long Gun, having the 23" barrel.
noticing that there is a circular cut out in the forearm where the Flash manometer gauge must have gone.
Haven't started anything on it yet, just Following,

So far I hear even being QE it still has quite a Bark to it

Curiosity, has anyone opened it up for any regulator adjustments ?

Bill

Bill

From what I've read, the regulator is not adjustable.  I could see it when I had the air cylinder off trying to get the Fill Valve off and did not see any trace to adjust it.  I did not take it off to see if there were any adjustment on the inside.  It says it's set between 125-130 BAR, but I'm not sure how you'd actually know what it's set at or what it would be adjusted to if there were an adjustment, since there is no gauge for the regulated side.

Paul

If they are using their AT44 (H) it's factory set at 125bar, and adjustable, which has to be removed to adjust,
also there is an early and a late version having to do with different design o-ring location

Bill

Bill, here's a picture of the regulator.  It's attached as tight as the Fill Valve so I didn't attempt to muscle it off to see if there is an adjustment inside.

Paul, Thanks for the Pic

Yes that is their AT44 latest one, and adjustable
being tight is most likely due to o-ring,
since it's been factory set without any reference marks to indicate your starting point of 125bar ,
you would have to remove it, then unscrew the plenum (silver collar) from the valve,
then you can scribe or put index marks for referencing,
you might get lucky by just trying to unscrew the valve from the plenum,
by putting a wrench on those flat notches

Hope this Helps

Bill
Title: Re: Hatsan Flash-R QE question
Post by: Rat Sniper (AKA: PaulT58) on April 26, 2025, 08:55:18 AM
Bill,

I did put a wrench on those flat spots and tried to turn it, it too, would not budge!  Hatsan't infamous Gary the Gorilla strikes again!  Not a big deal for me, it's a .177, so if it's shooting the 10.5's above 900 FPS, I'm good.  Chances are, if I need to change it it will be to lower the pressure setting, but I may be able to adjust FPS with the HST adjuster as well, it's a bit more accessible!  Thanks again for your help!
Title: Re: Hatsan Flash-R QE question
Post by: billygee on April 26, 2025, 10:39:54 AM
Bill,

I did put a wrench on those flat spots and tried to turn it, it too, would not budge!  Hatsan't infamous Gary the Gorilla strikes again!  Not a big deal for me, it's a .177, so if it's shooting the 10.5's above 900 FPS, I'm good.  Chances are, if I need to change it it will be to lower the pressure setting, but I may be able to adjust FPS with the HST adjuster as well, it's a bit more accessible!  Thanks again for your help!

Paul

I do understand the frustration, and caution taken not to damage anything,
But if you do decide to make another attempt toward the the regulator,
might I suggest using a heat gun or hairdryer on that plenum
where there's this troublesome o-ring seal that needs a little heat allowing to be broken
once that's done some o-ring silicone grease will make it easier on next adjustment

Bill
Title: Re: Hatsan Flash-R QE question
Post by: Back_Roads on April 26, 2025, 10:48:10 AM
 My next step would be a padded vice and a mallet to wack the wrench, that may cause damage to a warrantied part :)
Title: Re: Hatsan Flash-R QE question
Post by: Blowpipe Sam on April 26, 2025, 10:55:17 AM
Man I’m glad I started this thread.  There is lots of good information coming out.  Thanks guys!
Title: Re: Hatsan Flash-R QE question
Post by: avator on April 26, 2025, 11:00:28 AM
I think I would wait to see what Hatsan has to say before doing anything. heck, they may just send a whole new tube assembly and tell you to keep the one you have. Then you could put a blow torch and 2 monkey wrenches on it if you want to.   ;)
Title: Re: Hatsan Flash-R QE question
Post by: Blowpipe Sam on April 26, 2025, 11:21:07 AM
Bismillah!  It held air overnight!  Not surprised really since it came fully charged but an encouraging sign none the less.  Next I’m going to try and pump it back up to 2500 PSI.  I expect that to take a lot more work than the Raider or the 3622. ;D

Zeroing and chronographing today.  I’ll also be searching for the right pellet for it.

Man this thing is long!  Looks like something out of Star Wars too.
Title: Re: Hatsan Flash-R QE question
Post by: Blowpipe Sam on April 26, 2025, 01:39:02 PM
It is presently zeroed with JSB Kings at 20 yards.  If my hands were steadier it will stack them at this range.  I'm a little shaky today so I'm satisfied with one ragged hole.  I filled it to approximately 2300 PSI and 20 shots brought it down to approximately 1900 PSI.  It took better than 60 strokes of the pump to bring it up from 1800 to 2300.  The memsahib asked me a question while I was pumping and I lost track.  In a few minutes I'll pump it up again and proceed with chronograph testing.
Title: Re: Hatsan Flash-R QE question
Post by: Rat Sniper (AKA: PaulT58) on April 26, 2025, 02:37:55 PM
I think I would wait to see what Hatsan has to say before doing anything. heck, they may just send a whole new tube assembly and tell you to keep the one you have. Then you could put a blow torch and 2 monkey wrenches on it if you want to.   ;)

I'm in Bill's Camp on this one!  At this point the ball's in Hatsan's court.  If they send me the whole air cylinder/fill valve assembly and tell me to keep the old one, then I'll go all out ape on it and see if I gan get it apart and repaired and set it aside as a spare.  But, I suspect they will either want it sent back to them.  I'm just hoping they will send the replacement first and let me send the bad one back in the same box.  The other alternative is them asking that I return the entire rifle for a replacement.  I'd prefer to just exchange parts, but they will ultimate dictate how it will go down...
Title: Re: Hatsan Flash-R QE question
Post by: Blowpipe Sam on April 26, 2025, 03:20:18 PM
Hatsan CS has been pretty good about sending me parts.  I'd bet on them sending you a new cylinder.  It would be nice if they let you keep the old one.  If I had a spare I'd be tempted to "Open her up and see what she'll do".  But that would be kinda pointless in .177 unless you want to shoot slugs at hypersonic speeds.

I bought my chronograph at least two years ago.  Today the very first 9 volt battery I ever stuck in the thing died.  So no chronograph tests until I go to town this evening. :P
Title: Re: Hatsan Flash-R QE question
Post by: Blowpipe Sam on April 26, 2025, 07:42:00 PM
Quick chronograph report.

25.39gr JSB Kings.  Average velocity 772 FPS.  33.7 FPE
20.06 H&N FTT.       Average Velocity 827 FPS.  30.5 FPE
Title: Re: Hatsan Flash-R QE question
Post by: Rat Sniper (AKA: PaulT58) on April 26, 2025, 07:45:37 PM
Quick chronograph report.

25.39gr JSB Kings.  Average velocity 772 FPS.  33.7 FPE
20.06 H&N FTT.       Average Velocity 827 FPS.  30.5 FPE

I’m betting a little more HST tension and you will be in the mid 800 range. Just be aware, there is a set screw accessible through the side of the breech that needs to be removed before making any adjustment. It’s the same as the regular Flash and ther is a good how to video on YT.
Title: Re: Hatsan Flash-R QE question
Post by: Blowpipe Sam on April 26, 2025, 09:27:55 PM
Thank you Paul.  I'll be checking that video out.
Next I'm going to fill the gun and run a long string on the chronograph to find out where it falls off the regulator.
Title: Re: Hatsan Flash-R QE question
Post by: Rat Sniper (AKA: PaulT58) on April 26, 2025, 09:30:09 PM
Thank you Paul.  I'll be checking that video out.
Next I'm going to fill the gun and run a long string on the chronograph to find out where it falls off the regulator.

Here's a link the video I was talking about:

https://youtu.be/DwUDLbyszpU?si=pLu_BK8F5mt9DDxz

After you remove the stock and cock the lever you can see the grub screw through the small hole on the side of breech.  I think it's a 2.5mm hex key, if I remember correctly.
Title: Re: Hatsan Flash-R QE question
Post by: Rat Sniper (AKA: PaulT58) on April 28, 2025, 08:22:01 PM
Still waiting to hear from Hatsan...  I may have to ping them again tomorrow if I don't hear anything.  They only pay return shipping for 30 days after purchase even though the warranty on a refurb is 90 days! Since I contacted them the day after I received it, that clock should get extended if it takes them a week to get back to me!   :(
Title: Re: Hatsan Flash-R QE question
Post by: Rat Sniper (AKA: PaulT58) on April 30, 2025, 04:10:24 PM
UPDATE:  I heard back from Hatsan this morning.  They won't send parts, but did offer to let me just send in just the air cylinder and fill valve for repair.  I'm good with that and requested a return label.

Well, I still haven't heard back or received a return label, so I thought I'd give it one more try before throwing in the towel.  In the e-mail the Tech mentioned they use rubber in the vice and a big Phillips head screwdriver to break the valve loose!  So, I wrapped the air cylinder in some rubber weatherstripping I had laying around, cranked it down as tight as I could go in the vice and grabbed the biggest Phillips head screwdriver I could find.  I gave it a good yank and it broke free!  I didn't even have to apply any heat!

So, after removing the fill valve assembly from the air cylinder, I disassembled it and replaced the o-ring.  The old one was pretty shredded.  I lubed everything up, reassembled everything and filled it to 250 BAR.  So far, so good!  No air rushing out like before and no noticeable audible leaks when placing the fill valve near my ear.  I'm going to let it sit overnight and see where it is in the morning.  Hopefully, this fixed the problem and I can get back to shooting it tomorrow!
Title: Re: Hatsan Flash-R QE question
Post by: Blowpipe Sam on April 30, 2025, 05:37:52 PM
I'll burn some joss to the airgun spirits tonight Paul but I think you got it.  I've pumped mine up about ten times now.  Chronographing, zeroing, and plinking I've shot about 300 pellets through it.  I haven't shot it down to the point where it falls off the regulator yet.  I've been averaging three magazines between fills because I don't feel like shooting it down and then having to pump it all the way back up.  Starting at 2400 PSI I get thirty very consistent shots (SD under 10) which brings it down to 1400 PSI.  It takes about sixty strokes of the pump to bring it back up to 2300-2400.  The way my shoulder is right now those last 20 strokes are hard! 
Title: Re: Hatsan Flash-R QE question
Post by: Rat Sniper (AKA: PaulT58) on April 30, 2025, 05:53:07 PM
Thanks Capt’n!  I need all the help I can get, so any jewjew you can send my way will be appreciated!  Hopefully, I’ll be slinging some lead from it tomorrow! 
Title: Re: Hatsan Flash-R QE question
Post by: Rat Sniper (AKA: PaulT58) on May 01, 2025, 05:34:31 PM
The Flash R held air all night long!  The gauge didn't budge from when I filled it yesterday morning.  I spent some time testing pellets and slugs today.  It did decent with NSA 15gr slugs, not excellent but acceptable.  Pellets were the real shocker.  The JSB Redesign 13.8gr were all over the place!  With the way the heavy slugs performed I expected better results from these.  The Crosman Preier Domed, 10.5gr performed the best!  Small clover leafs, even when stretching it to 50 yards!  Next were the 10.65gr H&N Barracuda pellets.  The slugs were shooting around 890 FPS, the CPD's were right around 980 FPS, probably a little fast for those, but accuracy was there.  Now to wait for a rat or mouse at the feed station and see how it does as a hunting rig!
Title: Re: Hatsan Flash-R QE question
Post by: martrage on May 01, 2025, 06:36:09 PM
 Paul, Good news on the Hatsan Flash-R Refurb! You should be able to do a bit of HST to fine tune for sure . I did a bit of tweaking my old FlashPup to handle slugs
 for G-hogs(.22), then back again for "barn work". I'm looking forward to the Bait Station Cafe report .
 
 Cap'n Carter , I see you're getting some good results also, looking forward to your adventures also!
Title: Re: Hatsan Flash-R QE question
Post by: Blowpipe Sam on May 01, 2025, 07:46:36 PM
Glad to hear you got yours sorted out.  A 10.5gr CPD arriving at somewhere near 980 fps equals a lot of hydrostatic shock.  Looking forward to the video. ;D

I'm functionally ambidextrous when it comes to shooting. but I can't shoot right handed since my shoulder surgery.  I don't have any accuracy issues shooting left handed but the Flash is definitely a gun that you operate from the right side.  I have shot mine from a lawn chair with a tripod for support and achieved very good accuracy at 35 yards.  I haven't shot it from a bench with good support yet.  My hands are not the steadiest right now. LOL!  When I don't throw the shot they go right where I was aiming! ;D
It does not like 20.06gr H&N FTT.  It does like 25.39gr JSB Kings.  I'm ready to branch out and try some other pellets in it.  I have a few 27.47gr Baracuda Hunters but I need to order some different stuff to try in this gun.  Maybe slugs?   
Title: Re: Hatsan Flash-R QE question
Post by: Rat Sniper (AKA: PaulT58) on May 01, 2025, 08:25:03 PM
Paul, Good news on the Hatsan Flash-R Refurb! You should be able to do a bit of HST to fine tune for sure . I did a bit of tweaking my old FlashPup to handle slugs
 for G-hogs(.22), then back again for "barn work". I'm looking forward to the Bait Station Cafe report .
 
 Cap'n Carter , I see you're getting some good results also, looking forward to your adventures also!

I'd like to back off the HST and see if I can get a consistent 900-915 FPS with the CPDs.  Right now it's setup and zeroed at 50 yards incase the mouse I've been tracking shows up tonight!   ;D  A mouse at 50 yards with a Hatsan .177 should be quite a feat if I can pull it off!   :o
Title: Re: Hatsan Flash-R QE question
Post by: Rat Sniper (AKA: PaulT58) on May 01, 2025, 08:31:05 PM
Glad to hear you got yours sorted out.  A 10.5gr CPD arriving at somewhere near 980 fps equals a lot of hydrostatic shock.  Looking forward to the video. ;D

I'm functionally ambidextrous when it comes to shooting. but I can't shoot right handed since my shoulder surgery.  I don't have any accuracy issues shooting left handed but the Flash is definitely a gun that you operate from the right side.  I have shot mine from a lawn chair with a tripod for support and achieved very good accuracy at 35 yards.  I haven't shot it from a bench with good support yet.  My hands are not the steadiest right now. LOL!  When I don't throw the shot they go right where I was aiming! ;D
It does not like 20.06gr H&N FTT.  It does like 25.39gr JSB Kings.  I'm ready to branch out and try some other pellets in it.  I have a few 27.47gr Baracuda Hunters but I need to order some different stuff to try in this gun.  Maybe slugs?

Thanks Capt'n!  Stay tuned, hopefully the mouse will be out early tonight!  He was out there at 5:15 this morning, but I had zeroed the scope or test any pellets, so hw got a pass...  Those days are over!   :P

I can't do $h!t left handed!  Some days I can't right handed either!  I really messed up my right wrist a number of years ago and have been nursing it ever since.  It's about at that point where it's going to take more than a brace and a few Advil to ease the pain!  But, the Dec is telling me I'd have limited mobility after they fuse the bones together and recovery could be 6 months long!  Right now I just have to deal with it feeling like someone jammed an ice pick into it, but that only when I over due things, so still feeling the occasional ice pick stab is better than 6 months in a cast with zero mobility!  Now sure how that would impact me shooting!