Yeah opening the port to 3.5 mm made the difference in both Fpe and FpsI take it that the first shot string you shot was with the 22gr's & second with the 15.9gr's (due to the FPS vs the FPE... Damn on them 22grain's you've got some really good powerful consistent shots! I'd be happy with 35FPE out of a .22... Not sure if regarding the hammer spring lightness helping for more power, that's above & beyond my knowledge. But seriously, I'd be pleased with that kind of power. Especially seeing how u didn't even pout it on the bottle yet... Didn't mind if I ask, how many consistent shots @ that power on the stock air tube?
On the sock air tube with 2 plenum extension I get 14 shots before if falls off the reg
I have a .42 bottle coming just waiting for that found some hammer springs
Once the bottle goes on going to try 23- 2400 psi
Should break 900 fps with 15.89 well see Thursday
My goal.was 8 -850 with 28-30 fpe
If it hits 900 I will shoot a couple strings and turn it back to mid 800s
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