Does anyone know how the 130 foot pounds of energy is achieved ,longer barrel transfer port? I have a .357 but I can only get above 700 fps with jsb 81 grain, mine is a regulated version
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Raw .357
- Thread starter JorgeAvila
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You can turn your reg up. Or have it done.
Alan Zasadny can double the blast chamber AND add a power plenum. He can get those 81's singing.
Alan Zasadny can double the blast chamber AND add a power plenum. He can get those 81's singing.
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First I will try by adjusting my regulator,Does he have a website or is he an airgun nation member?
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Oh okay thanks for the info, I though I read about the 130 foot pounds gun was regulated, mine is regulated wirh a 24 inch barrel, I have a .22 and a .357 barrel both are 24 inches long
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Have you cranked down the hammer spring? I have a .25, not a .357, so I don’t know about potential FPE with that gun but I gained a lot of velocity with the hammer spring before even touching the regulator. Be forewarned, it becomes a very twangy, uncomfortable gun to shoot. I turned up my reg. a little bit and turned down the hammer spring. Also, be aware, if you don’t have a regulator tester, it’s hard to know what’s going on with your regulator. I have friend with one, otherwise you’d just be guessing and watching for when your gun falls off the reg. If you want to try it first yourself, great, more power to you, but Alan knows his stuff and does beautiful work on these air guns. It might be worth it to just send it to him and have him work his magic.
Stoti
Stoti
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My RAW 357 only does 750 - 760 fps for 100fpe with 81 grs JSBs. I think that this was all these guns were setup to do back several years ago, based on discussions with Ken at SPAW to get mine up to more of a bench gun. If you want more, you'll have to do more than hammer spring and regulator pressure - probably more plenum as size in the 357 is quite small compared to other ones (e.g. FX Power Plenum). A longer barrel would help as well - I was thinking of a 32" (about 800mm like a FX).
Dan
Dan
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Out of curiosity, is it not accurate at 750FPS? Why do you need 130FPE? Are you going to use it for a bench gun, if so, why I .357? I’m assuming because you have it and can?
Have a good one. Stoti
Have a good one. Stoti
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I never really got to test it out fully at distance once I tuned it - it was just too dang loud! I was under the impression that the heavier the Pellet, the less wind effect. I stumbled upon a Ken Hicks tuned Impact in 30 cal and have been pretty happy with it. So, the 357 has been gathering dust for a bit.
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Its not that it is not accurate i was just trying to see what this rifle can do with jsb 81 grains but if 750 fps is all it can do im okay with that, I don't have a specific purpose for it, a longer barrel will make it extra long, I do have a regulator tester coming in ,in the next couple days to check at what pressure the regulator is set, but if not ill just leave the .22 cal barrel in it , it shoots at 941 fps with the 25 grain monster redesigned
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Not sure if you are swapping barrels on the same rig or have different rifles. The .357 will put out 200fpe w/out totally maxing everything out.
John
John
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Spysir thanks for the info, it is the same rifle and I have to calibers for it .22 and .357, but until my regulator tester gets here, I won't be able to know what my reg pressure is and what this raw can do in .357
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