Thanks Chapman, I put that fine peep in and it really tightened things up. That, plus I am starting to get used to the flinter. My boy and I shot the .22 and the .177 pellet gun in between cool downs. Even the hot barrel grouped tight, just in a different place. It's all starting to come together. The .015 patches might just be the ticket. They loaded a bit easier than the .018 as well. Still playing, but one thing I know for sure is that the GPR don't shoot conicals worth a hoot.