Sir, I know tht they arent very popular these days, and you stated an interest in sabots, but in answer to your question, 100grns of pyrodex select behind a .50 cal Hornady 385 grn Great Plains conical shoots under 2.5" @ 100yds in mine. I have not experienced leading problems and swab between every 4-5 shots. Bought a bunch of XTP (240, and 300gr) sabots, some powerbelts(285 I think) and some others. Tried them and all shot well enough. I mainly hunt with one of my two TC Renegades during smokepole season, 1 in .50, 1 in .54, and just because I had a bunch on hand decided to try them in my Black Diamond for ha-ha's. Havent bought sobots since. They arent as flat shooting as the sabots of course, but they hit like sledgehammers, and I have yet to have a 200yd. shot during the earlier blackpowder season with so much foilage still hanging around, so that has just never come up for me personally. Thought I would mention that to you in case you were interested. Oh yea, Ive got a Burris Timberline 3X9X32 on top of the Black Diamond. That definately helps!!