HI, new member today came looking for tuning info on impact m3 22 kal. I bought this gun in 2021 from utah air had it tuned for slugs now I’m going back to pellets. I’m having a hard time slowing down JSBs 18 Gn bellow 900fps. 1st reg 140- 90. 2nd reg 86-60. Any ideas?
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- Thread starter Archie917
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Hi, and welcome to the Rabbit Hutch. My JBS's like 900 fps out of my Compact Maverick so what's the issue.
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Wondering if it's working on the slug port.
Fenian seams to b the way, I operate I go back and forth between hobbies.
Fenian seams to b the way, I operate I go back and forth between hobbies.
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With the second reg at 95 bar (factory setting on my M3 700mm), I get 18gr JSB's just bellow 900fps by restricting the valve adjuster quite a bit. Macro and micro are 8 and 3 respectively (also factory setting).
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I now have it set to,1st reg 145, valve adjuster ar 4 lines showing, 2nd reg 72 macro 16, micro 1.5 18 gr jsb 920 fps. I'll go to range tomorrow and see how it goes.
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