I've been shooting Hornady 000 buck in a .36 pistol with 25 yard groups about one and a half to two inches, which is about the best I can do with iron sights on any pistol. The Hornady buck is not at all like old Lawrence brand buck which had many flat spots and weight variations. The Hornady buck looks like polished steel ballbearings, actually much better than their swaged roundballs. However it is NOT pure lead, but is hardened with antimony. Hard is good in buckshot since it retains it's roundness for a better pattern but dead soft pure lead is generally prefered for patched roundballs. That said, I doubt I could much improve on the accuracy I'm getting from that .36 pistol. :results: