My .50 cal. Knight Disc shoots superbly with a 295 gr. Copper Clad CVA Powerbelt bullet powered by 2 50-gr. Pyrodex pellets, and a 209 CCI shotshell primer. I often have bullets cutting the same hole at 100 yds. with this load. I have used this load on 4 whitetail deer and 1 Russian boar and all were quick 1-shot kills. I have heard from other Knight rifle owners that they have had similar results with this load in their Knight rifles. Hope this helps you out.