So I cleaned the barrel, and it was filthy!I used a total of 14 patches and 6 shoot through pellets to get it clean.I also had a drop in velocity lately and adjusted the hammer spring thinking it had backed out a bit.I'm now thinking it might have been the extra drag in the barrel from too much lead build up....is this possible?I was down approx 60 fps and after I put it back to 900 fps approx it seems less efficient than it was, I'm hoping to test it tomorrow and will report back.