Hi All,
I have just received a new 600mm .22 STX barrel kit, I was wondering if there were any new ImpactX owners that ordered the gun in this config that may have happened to chrony the 18 grain JSB pellets? I would like to know at what speed the factory config is at?
I was tending towards trying the barrel shooting jsb 18 at 875FPS but have also thought about 920FPS so I thought a good place to start would be where a stock gun is and work from there, can anyone help with suggestions?
I have just received a new 600mm .22 STX barrel kit, I was wondering if there were any new ImpactX owners that ordered the gun in this config that may have happened to chrony the 18 grain JSB pellets? I would like to know at what speed the factory config is at?
I was tending towards trying the barrel shooting jsb 18 at 875FPS but have also thought about 920FPS so I thought a good place to start would be where a stock gun is and work from there, can anyone help with suggestions?
