So I zeroed my Savage B22 with standard cci velocity .22lr bullets with huntertown arms direct thread can; I was able to consistently hit golf balls at 75yards. Went home and cleaned the can; been about few thousand rounds through it and needed cleaning. Went out today with the B22 and standard velocity cci ammo, same everything from when zeroed, and I could not hit the golf balls. Did my POI change after cleaning the can or does the POI change slightly every time I take on and off the can even though it’s a direct thread? Thanks
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