Reply To: Fx Impact Mods for more FPS / FPE

Forums PCP Airguns Fx Impact Mods for more FPS / FPE Reply To: Fx Impact Mods for more FPS / FPE

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jp003
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Few mods to my new MKII Impact. Reg pressure 140 

Changed C3 bumper to delrin, increase speed 25-30 fps

Enlarged barrel tp hole and cut off section of the pellet probe 

Pellet probe design one, increase speed 40-45 fps

Pellet probe design two, increase speed 50-55 fps!!! ( I thought design one will give more speed, but I was wrong.)

Now I can shot JSB .22 redesigned  consistently around 993-998 fps!  Will do more test with other calibers.

  • This reply was modified 4 months ago by jp003.