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221 Posts
ok so i don't know if this is a problem with my gun or the cp reg i bought, but my gun refuses to shoot over 256 fps. sometimes i can get it to shoot at 270and be pretty consistant but the next time i chrono it's right back down to 240-250 and i tried turning the velocity up. i went all the way up to 400 psi and it was still shooting 250.. what do i do?