Hello Daryl, I found this site a while back and discovered my friend Daryl also frequents it!! I am finding the threads about the round ball loads very interesting as I used to do this in some old SXS's with black powder, of course!!! I was wondering about the possibility of rifling a set of barrels for round balls, I believe this was done by the British in the 19th century. I have an old Belgium SXS with the barrels cut back to 22 inches and a .719 bore. I am assumimg the twist rate would be the same as for a m-loader in the 1/95 range but what about groove depth, and ball size? Would I be better off with a patched ball or an oversize lubed ball? How much oversize? In a shot cup? I"ve had this project in mind for some years now, maybe its time to GET ER DONE!!!Thanks, Ed (Longknife)