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So, I was working with my buddy on his new PP750, porting etc. I had seen in a video or read that the regulator feet port from the cylinder is so small that it takes 20 to 30 seconds for the (small plenum to refill between shots. I removed the adjuster screw and drilled the tiny wire drill...

I drilled or vented the hammer in my Artemis PP 750 on Friday because I believe I was getting air bounce between the hammer and the valve. What additional tuning does this require? With no other changes my fps went from 722 to 760 with a 16 gr pellet. I expected a minor pickup but definitely...