I have shot the Great Plains, the T/C maxi ball and maxi hunter. They work great in my T/C Renegade and my CVA Mountain Stalker. Right now I am using a LEE R.E.A.L. concial that I make myself. I make both a 300 grain and a 380 grain for the .54 caliber. They load easy, and shoot great. Since they are pure lead, all you need do is nick a bone on the way in and they really open up. Not meaning to offend anyone, but I had some powerbelts once, and did not like them. They would not group, and were hard to load after the first shot, so I gave them to a fellow with an inline for some lead.