Iv'e been pondering the lazer cast bullets from oregon trail, as there are claims of "no leading" and good accuracy, etc. I heard they were about 24 brn. My concern is that a bullet this hard might wear out my rifling as quick as a jacketed bullet. Any reason for alarm or am I really out of the loop? I thought the softer the alloy the longer the barrel life? Please tell me all I need to know! Thanks Also, I don't have a slug your barrel kit, and was wondering if anybody knows offhand what @ diameter 45 slug I should run in a bisley blackhawk colt/acp?