I have a Star BM 9mm with what appears to be a heavily leaded barrel. I picked up the gun in a trade so not sure of its history with lead bullets but it almost has to be lead. I have tried soaking it in Hoppes No #9, followed by a good scouring with a piece of a copper, Chore Boy pad wrapped around a .38 caliber bore brush....repeatedly. So far not much lead removal is taking place. I thought about buying a Lewis lead removal kit but since I don't shoot much lead I didn't really want to spend the money on one not knowing if it will work any better than the "Chore Boy" method. I read in another post about the use of a 50/50 mixture of vinegar and hydrogen peroxide but am hesitant to try it on the Star barrel. I have heard that they are made of a softer steel and am afraid of etching it. Has anyone used this method with good results and no damage with Star pistols? What other lead removal options are there or what would be a better commercial soaking solution than Hoppes #9?