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  1. L

    Tuning Help with tune FX Impact M3 .22

    I need help tuning FX Impact M3 .22 cal . I had 250 bar on regulator and shot 25-30 H&N 18 and used down to 210 bar off the 250 charge. I would like to get a more efficient use from my 300 cc compact 500mm, I'm shooting 851 fps +- with H&N 18(18.13) Reg #1 150 bar,Reg #2 pressure gauge 75.The...
  2. L

    Tuning nitrogen in pcp (FX)

    I have a FX M3 but no compressed air for fill . Can I use nitrogen instead ,with out damaging the FX M3.