So, I'm kinda working on what might be a crazy, stupid, or hair brained idea. I am wanting to make heavy paper .50 cal shot cups, for a CVA muzzleloader. I've seen guys shooting raw shot in rifled barrels with what I would call poor patterns. My throught is, a fairly heavy (double grocery bag maybe) full walled, maybe cork or double cardboard base wad, and say 400ish grs (11/16 to 7/8 oz) of shot, over 60-80 grs (volume) no4 or no5 shot. I would think the paper(maybe waxed for lube) would not fully engage rifling, and reduce spin dispersion? Looked some online, but not really found any info.
Gonna work on turning a brass 0.505 ID cylinder, and a 0.495 OD rod, as a kinda forming jig to make a couple shot cups.