Pluckit,

Your patches look like they have a little bit of tearing around the diameter of the ball. That can be caused by minute burrs on the rifling lands. The one on the right looks like it has some burn through in the center...not sure as it almost looks torn. Looks like you could also go with a little bigger patch, you may not be getting enough material around the ball and some of the gasses may be blowing by because of it. I would expirement more with different patch size and different lubes and maybe try a .535 ball instead of a .530 before you give up on roundballs. One of my Renegades favors a .535/.015 patch combo. If you try some solid conicals, try some with and without a felt wad between powder and conical to see if you get a better group either way. You might also need to put the JB paste to that bore.

BPS