RE: OK, So I'm THAT guy
I put on the adjustable buckhorn as soon as I got the rifle, and I like it alot. haven't tried out to 100 yds yet but at 50 the roundballs were actually grouping pretty good.
I cast my REALs out of lead ingots Imade fromscrap lead from various places. It's possible that an alloy is in there making them harder.
For my .45 rnfp bullets I add a bit of antimony and tin (from a roll of solder), but with this batch I didn't add anything. Got to find some pure lead obviously.