Author Topic: Sythetic Flashpup Adventure Started (Read 24486 times))

Rallyshark · « **Reply #100 on:** December 11, 2019, 09:37:59 PM »

Quote from: darkcharisma on December 11, 2019, 12:24:36 AM

the only thing you and i haven't thought about is fitting a balanced valve. wait...i just thought about it. lol.
yes regulator and bottle for more consistent shot counts are old news. the plenum if tube is cut forward of the barrel band should yield closer to 50-70cc. thats plenty!

Make sure and post when you do all that to it

Thane · « **Reply #101 on:** December 23, 2019, 04:12:09 AM »

Thinned the pellet probe and cranked up the hammer spring. Peaked at 66FPE with 34gr JSB MK II only netting 6 shots over 60 FPE.
Lowered tension by 3 turns brought 7 shots at 57 FPE and 12 shots within 4% definitely need more volume.

Chart shows what modification netted how much power increase from factory (pink), largest gain being the .212 valve seat with longer spring (blue), .187 transfer port with probe thinning (red) which steepened the bell curve. Yellow was peak hammer force, green turned down 3 turns.

Still working out how to set up a bottle with or without a regulator which is difficult with reduced plenum space.

Rallyshark · « **Reply #102 on:** December 23, 2019, 06:18:48 AM »

Yep! Your results are almost spot on with mine when I did the various mods. I also agree on the biggest change coming from the valve seat and spring. I didn't thin my probe as much, but I did a little bit. The gun will wake up some more, if you give it a bit more barrel to work with. With the longer barrel, it makes power so much easier, and that power hangs on for a few more shots too. Very good info with the charts! Still, it is hard to complain about a gun with that small of a cylinder(and price point) making that kind of power! Great work Thane!

ghost5 · « **Reply #103 on:** December 23, 2019, 11:10:24 PM »

I have been following along on this since I just got a 25 cal Flashpup last month. All I can say is I wish I had the tuning skills you guys do. If I did this thing would be a monster as fast as I could get it done.

Can't wait to see what you do with this project.

archellas · « **Reply #104 on:** December 24, 2019, 12:01:16 AM »

Following .....

MERRY CHRISTMAS Donny!!

Rallyshark · « **Reply #105 on:** December 25, 2019, 02:07:06 AM »

Quote from: archellas on December 24, 2019, 12:01:16 AM

Following .....

MERRY CHRISTMAS Donny!!

Merry Christmas to you too sir!

Rallyshark · « **Reply #106 on:** December 28, 2019, 05:27:00 PM »

Thane, where did you source that heavier spring for your gun from?? I've got one or two that I get from the local hardware store that work, but it looks like the spring you're using may be a bit heavier.

Thane · « **Reply #107 on:** December 28, 2019, 09:39:16 PM »

Found the spring in an Ace Hardware kit.

Length is 3.25" dia 0.33" wire dia. .047". VS stock 0.31 dia with 0.42" wire dia.

Compressed tight to set the spring (lost .25") then trimmed down.

Tight fit, but delivers more hit.

Rallyshark · « **Reply #108 on:** December 28, 2019, 10:01:14 PM »

Quote from: Thane on December 28, 2019, 09:39:16 PM

Found the spring in an Ace Hardware kit.

Length is 3.25" dia 0.33" wire dia. .047". VS stock 0.31 dia with 0.42" wire dia.

Compressed tight to set the spring (lost .25") then trimmed down.

Tight fit, but delivers more hit.

I believe that is the exact same spring I'm using,lol! I also get mine from Ace

Dan H · « **Reply #109 on:** December 29, 2019, 03:16:59 AM »

I just noticed AGD has 12 % off coupon free ship plus free scope 3x12x50 with this SFP .25 {not that the scope will be great }, and I have not bought a new gun in 2 years !

… what will power I have had ...

… I might just have to bring this no buy misery to and end ...

.... A question for you guys has anyone just tried simply adjusting the hammer spring in a .25,and if so what kind results did you get ? ….

Rallyshark · « **Reply #110 on:** December 29, 2019, 12:22:05 PM »

Quote from: Dan H on December 29, 2019, 03:16:59 AM

I just noticed AGD has 12 % off coupon free ship plus free scope 3x12x50 with this SFP .25 {not that the scope will be great }, and I have not bought a new gun in 2 years ! … what will power I have had ... … I might just have to bring this no buy misery to and end ... .... A question for you guys has anyone just tried simply adjusting the hammer spring in a .25,and if so what kind results did you get ? ….

I think bone stock they will do mid 40 fpe range in .25 with a little HS adjustment. Hatsan's numbers they list for power are usually pretty spot on, give or take a little

You can easily adjust it lower too. Shot count will depend on where you want the power. Generally speaking, 2 magazines per fill is attainable no problem.

Thane · « **Reply #111 on:** December 29, 2019, 03:50:25 PM »

Yep, very flat 21 shot string within 4% ES making 37 -38 FPE with 25.4 gr JSB.

That was what it did new, right out of the box, absolutely spot on hammer setting for 2 magazines.

As far as just cranking up the hammer force without any modification, didn't do it. I would expect a downward trend string of shots.

Thane · « **Reply #112 on:** December 30, 2019, 06:06:04 PM »

After coveting Donny's Huma MOD40 LDC for a few weeks, mine in .25 showed up this weekend.

Very quiet, but was clipping and scattering pellets. Huma was very honest with the first production batch undersized bore and finish that was more flat than desired. For that they provided a very generous discount. I drilled the bore from 9/32" to 19/64", an 0.016" increase. Clipping is gone, accuracy restored very pleased with the operation and flexibility.

Rallyshark · « **Reply #113 on:** December 30, 2019, 10:58:32 PM »

Quote from: Thane on December 30, 2019, 06:06:04 PM

After coveting Donny's Huma MOD40 LDC for a few weeks, mine in .25 showed up this weekend.

Very quiet, but was clipping and scattering pellets. Huma was very honest with the first production batch undersized bore and finish that was more flat than desired. For that they provided a very generous discount. I drilled the bore from 9/32" to 19/64", an 0.016" increase. Clipping is gone, accuracy restored very pleased with the operation and flexibility.

Yeah, I think that's why those were on sale, because the holes were a wee bit small, if you didn't have absolutely perfect alignment(and pellet flight). I was using mine on a .22, so I didn't care. They are pretty dang quiet though, and I love the design! It is among the best LDCs going in my opinion

Dan H · « **Reply #114 on:** December 31, 2019, 04:29:39 PM »

How do you guys like the mags on these guns ? … I have seen some people complain about them .

Thane · « **Reply #115 on:** December 31, 2019, 05:11:31 PM »

For me they perform well with no unusual issues, simple compared to previous AT44 metal mags with retracting axle and anti-double feed levers.

If you don't like spring loaded mags, you won't like these which perform just like Marauder/Gauntlet....

Rallyshark · « **Reply #116 on:** December 31, 2019, 08:21:08 PM »

I've never had any issues at all with my magazines. The first ones that came out in the Flash weren't that great, but Hatsan remade them, and they have been working great. The ones with the red wheel inside are the newer version, and all guns sold now have the new version.

Dan H · « **Reply #117 on:** December 31, 2019, 11:08:17 PM »

Sounds good thanks guys ….I have a nice mrod/ tuned/boyds blaster stock, and i love that gun ,and the way the mags perform in it. SOooo it looks like I am standing on the SFP diving board , trying to get the best price . AGD had a 12 percent off code "FINAL" price but during check out it said not for this item .. $:-\$ ...wouldn't you know it ...

$:-\$ so I hate paying full price ,and no refurbs available at hatsan usa so I will search some more .

Rallyshark · « **Reply #118 on:** January 01, 2020, 01:06:44 AM »

Quote from: Dan H on December 31, 2019, 11:08:17 PM

Sounds good thanks guys ….I have a nice mrod/ tuned/boyds blaster stock, and i love that gun ,and the way the mags perform in it. SOooo it looks like I am standing on the SFP diving board , trying to get the best price . AGD had a 12 percent off code "FINAL" price but during check out it said not for this item .. $:-\$ ...wouldn't you know it ... $:-\$ so I hate paying full price ,and no refurbs available at hatsan usa so I will search some more .

If you want to get the best of the Flash weight advantage, go with the Flashpup Wood(6.1 lbs), or the standard Flash(5.9 lbs). The Flash Wood is 6.6 lbs, and the Synthetic Flashpup is 7 lbs, because they have a heavier steel cylinder fwiw. They are all equally as good, and I don't mind the slight extra weight personally. I'm sure somebody on here has a PA catalog floating around with a 10% off code they'd be willing to PM ya,lol. I'd give you mine, but I used it already.

Dan H · « **Reply #119 on:** January 01, 2020, 08:38:24 PM »

Quote from: Rallyshark on January 01, 2020, 01:06:44 AM

Quote from: Dan H on December 31, 2019, 11:08:17 PM
Sounds good thanks guys ….I have a nice mrod/ tuned/boyds blaster stock, and i love that gun ,and the way the mags perform in it. SOooo it looks like I am standing on the SFP diving board , trying to get the best price . AGD had a 12 percent off code "FINAL" price but during check out it said not for this item .. $:-\$ ...wouldn't you know it ... $:-\$ so I hate paying full price ,and no refurbs available at hatsan usa so I will search some more .

If you want to get the best of the Flash weight advantage, go with the Flashpup Wood(6.1 lbs), or the standard Flash(5.9 lbs). The Flash Wood is 6.6 lbs, and the Synthetic Flashpup is 7 lbs, because they have a heavier steel cylinder fwiw. They are all equally as good, and I don't mind the slight extra weight personally. I'm sure somebody on here has a PA catalog floating around with a 10% off code they'd be willing to PM ya,lol. I'd give you mine, but I used it already.

NATION19 worked on PA when I tested it in check out for 10%… now I have to decide which one flash wood vs SFP . I am starting to really like the flash wood looks to have the same internals as the SFP found this vid on you tube … pretty impressive …

don't know how many shots it really took to split the playing card in half ..

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Sythetic Flashpup Adventure Started

Author Topic: Sythetic Flashpup Adventure Started (Read 24486 times))