GTA
All Springer/NP/PCP Air Gun Discussion General => PCP/CO2/HPA Air Gun Gates "The Darkside" => Topic started by: blackdiesel on May 31, 2015, 02:50:59 AM
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I got the regulator installed and after fiddling with it, got it working like I wanted. I first tried it set at 115 bar with no preload but was still a little hotter than I wanted. I was getting an average velocity of around 915 fps. I noticed I was still getting pellet spiraling on some shots. So I pulled it out and set the pressure to 110 bar. Now I get an average velocity of 895 fps for 40 shots. This is with 18.13 gr JSBs. I tested Crosman Ultra Magnums 14.3 gr and got 945 fps; withe JSB 15.9 I got 928 fps average so I'm sticking with 18 gr pellets. Here's an official stream. Just 10 shots but it's pretty much the same for 4 magazines
896, 896, 892, 899, 895, 894, 898, 900, 895, 897.
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Hey Blackdiesel,
If you shoot a string, please let us know what the ES is.
Thanks
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What is the ES
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Hey Blackdiesel,
If you shoot a string, please let us know what the ES is.
Thanks
Kirk,
I don't even have to refer to the actual numbers, the first shot is 899 fps and after this all shots falls between 893-896 fps for 4 mags ;D
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What is the ES
ES=Extreme spread. The difference between velocity of the shots.
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a very nice shot count and ES
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Hey Norm after a while that 3es will drop to 2 ;D That is the perfect speed for the 18.13gr that is where my .22 is tuned at....895fps 40 shots is awesome! With a 3fps ES!
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Hey Norm after a while that 3es will drop to 2 ;D That is the perfect speed for the 18.13gr that is where my .22 is tuned at....895fps 40 shots is awesome! With a 3fps ES!
That's good to know. BTW I'm loving the new crowns. I'm not so good at target shooting because I always mess up something to spoil a great group, but I was able to hit 10 out of 10 paintballs at 50 yards. They are dime sized so I will use that as a measurement instead of targets....
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Hey Norm after a while that 3es will drop to 2 ;D That is the perfect speed for the 18.13gr that is where my .22 is tuned at....895fps 40 shots is awesome! With a 3fps ES!
That's good to know. BTW I'm loving the new crowns. I'm not so good at target shooting because I always mess up something to spoil a great group, but I was able to hit 10 out of 10 paintballs at 50 yards. They are dime sized so I will use that as a measurement instead of targets....
10/10!@ 50yards I would say that my crown job + regulator has made one deadly accurate rifle! I am glad that you like the work!
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I'm going to go ahead and use a reg in my bt65 22 cal. Low es and the ability to slow pellets down seems like a win win
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I'm going to go ahead and use a reg in my bt65 22 cal. Low es and the ability to slow pellets down seems like a win win
That was my reason for getting one. If I was having problems with pellets being too hot in my AT44 long I can imagine what speeds the BT65 is shooting them.
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Comment & question:
Blackdiesel: The Huma's are pricey, but the results speak for themselves 8)
Baxter: Have you purchased a special crowning bit for your lathe or just use a regular cutting tool at 11 degrees?
If you are OK with it, can you show a pic of a "Baxtered Crown" -> as I may re-crown all my airguns using such method.
Guys, Much appreciated ;D
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I got so caught up with the performance I probably went through 300 pellets just looking at shot counts.... :-[
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I got so caught up with the performance I probably went through 300 pellets just looking at shot counts.... :-[
Yeah @ 40 shots a string 5 strings is 200 pellets ;D
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Comment & question:
Blackdiesel: The Huma's are pricey, but the results speak for themselves 8)
Baxter: Have you purchased a special crowning bit for your lathe or just use a regular cutting tool at 11 degrees?
If you are OK with it, can you show a pic of a "Baxtered Crown" -> as I may re-crown all my airguns using such method.
Guys, Much appreciated ;D
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Hey Baxter,
I thought you were referring to the crown, not the breach (pictured).
So it seems you put a 11 degree crown on the muzzle, + square off the breach and take a few thou off the inside, breach chamber?
Does that sound about right ?
Kirk
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Hey Baxter,
I thought you were referring to the crown, not the breach (pictured).
So it seems you put a 11 degree crown on the muzzle, + square off the breach and take a few thou off the inside, breach chamber?
Does that sound about right ?
Kirk
I see threads so I would say that's a picture of the crown..
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What? thats a crown
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Hey Guys, Now you can see why I MUST use a scope for anything over 10 yards ;D These 56 YO eyes play tricks on me, plus there is a lot of shinny metal in that picture and not much contrast.
Going back to the crown:
1) You just square muzzle.
2) Then take a few thou of the interior of barrel.
As you can see, I can't :-\
Sorry Baxter .............. :P
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lol no problem , no I cut 11deg to just within a few thousandths of the hole.
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Thx Baxter - do you have any better pictures?
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What is the ES
ES=Extreme spread. The difference between velocity of the shots.
LOL I know what it means, I asked what was your ES, guess I wrote it wrong
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What is the ES
ES=Extreme spread. The difference between velocity of the shots.
LOL I know what it means, I asked what was your ES, guess I wrote it wrong
Sorry LOL. Well, it's been answered already but after the first shot it's 3-4 ES.
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That is very good consistency makes me wonder if a long tube can be installed in the short AT? If so can I still have a 1" ldc installed in the barrel without removing the long tube? It would be nice to have a 40 shot full power version in the long tube and a 120 shot low power (12fpe) in the short tube...
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Comment & question:
Blackdiesel: The Huma's are pricey, but the results speak for themselves 8)
Baxter: Have you purchased a special crowning bit for your lathe or just use a regular cutting tool at 11 degrees?
If you are OK with it, can you show a pic of a "Baxtered Crown" -> as I may re-crown all my airguns using such method.
Guys, Much appreciated ;D
If you don't zoom in with a phone all I see is two orings and what looks like a inside o ring, when I make pic bigger I can tell its a crown.......I want that lathe lol
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I'm glad that you were able to tame it down with the regulator! Like I had mentioned, the only option left to squeeze a few more shots is to remove the spacer between the preload screw and spring. Since you are at 0 preload, it will be the same as going -3 or -4.
Btw, Normans valve is not stock.
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Hey Baxter,
Even though I'm "whipping a dead horse" on this one, I found a different post/picture where YOU were crowning an AT44-10 barrel. The picture was similar, but different enough where I could see the 11 degree (concave) nature of the crown. The newest pic looks like it was squared off.
Anyway, after everything, I decided to try a Target Crown instead of the one you had shown. I believe you may have gone to this type of crown, anyway. Afterall, I believe your original crowning discussion was a year ago.
Thanks ........... Kirk
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Hey Baxter,
Even though I'm "whipping a dead horse" on this one, I found a different post/picture where YOU were crowning an AT44-10 barrel. The picture was similar, but different enough where I could see the 11 degree (concave) nature of the crown. The newest pic looks like it was squared off.
Anyway, after everything, I decided to try a Target Crown instead of the one you had shown. I believe you may have gone to this type of crown, anyway. Afterall, I believe your original crowning discussion was a year ago.
Thanks ........... Kirk
Nope all my crowns are 11deg, maybe different angles or one from my BT65 and one from the AT44, Target crown Vs 11deg same. Target crown is used to protect the crown if you are not using a LDC or some thing. I like the 11deg cause it expands the air away from the back of the pellet to some degree.
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As always -> Thanks Baxter 8)
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Diesel, how did you vent your regulator? Did you just do the "gap" method or did you actually file a channel in the threads and notch your cylinder?
Also, who did you order your regulator from?
I just got an AT44 in .17 and I can tell already that I'm going to want to regulate it. Thanks for the help, buddy.
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Diesel, how did you vent your regulator? Did you just do the "gap" method or did you actually file a channel in the threads and notch your cylinder?
Also, who did you order your regulator from?
I just got an AT44 in .17 and I can tell already that I'm going to want to regulate it. Thanks for the help, buddy.
I did the gap method. It doesn't take much of a gap because you remove the o-ring from the valve (inside tube) so just hand tighten the valve and back it off just a tinch. Fill the tube before screwing it into the gun so the pressure will secure the valve in place. Here is a link to where I got it. http://airsuperiorityproducts.info/ (http://airsuperiorityproducts.info/)
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Well, I've been trying to get in contact with these airsuperiority guys, but they won't email me back. They're out of stock, as is the only other place online I could find that sells HUMA regulators. I even attempted to contact HUMA directly, but they're not getting back to me either. It would seem that I'm SOL.
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Well, I've been trying to get in contact with these airsuperiority guys, but they won't email me back. They're out of stock, as is the only other place online I could find that sells HUMA regulators. I even attempted to contact HUMA directly, but they're not getting back to me either. It would seem that I'm SOL.
Call Nick directly at 541-636-7557
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Thanks, diesel. You're an officer and a gentleman.
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Hi Guys!
Sorry I missed anyone's email regarding the Hatsan Regs. They will be instock around a week...they are in customs as we speak! if you have any questions please don't hesitate to call....five four one six three six seven five five seven.
Nick
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Set reg on 100-105 for 900fps 18gr jsb, with bt65 22 cal.
On runs past chrono I get a es of 3.
Without reg there is no way to slow this gun down this much.
I just tapped and put set screws over valve ports, jb wield over, faced port left open at 12:00, drilled that port to match transfer port. I left rest of ports factory. Threw in this reg played with settings a few times and job done.
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Set reg on 100-105 for 900fps 18gr jsb, with bt65 22 cal.
On runs past chrono I get a es of 3.
Without reg there is no way to slow this gun down this much.
I just tapped and put set screws over valve ports, jb wield over, faced port left open at 12:00, drilled that port to match transfer port. I left rest of ports factory. Threw in this reg played with settings a few times and job done.
From all those mods and the reg you must have a very efficient .22, how many shots you get?
you should do a review for accuracy and consistency, the bt65 is a really nice gun
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Funny you should ask
Just got a break in the rain, went out and shot 30 shots on a 1 fill.
I think I could do somthing with valve rod, part that is struck to get more shots.
Hammer spring is basically all the way off.
Gun will get a barrel crown when my gun smith gets back in town.
Gun shoots pretty well, when I 1st got gun it was a air hog that broke sound barrier with every shot, till it got low on air.
Now it's my back yard plinker