At least to me. I have heard the many reasons for not shooting cast bullets, most are very lame at best. My wife works in the Medical field, a coworker whom is male and shoots was talking to her about shooting. He as well as my wife have PA License to carry a firearm, He was talking about how expensive shooting can be, My wife told him that 90% of the bullets, We shoot are cast. He then stated that he dose not shoot lead bullets because they are corrosive to the barrel. I thought I had heard it all, I told my wife to ask him to explain why a 22LR barrel last as long as they do if this were true.