I shoot corrosive ammo in my M-1. I clean it properly. I have no worries. I have a decent quantity of WWII era surplus M-2 and M-2AP. Why have it if I can't shoot it? I also have a decent quantity of WWII era G.I. bore cleaner, the really stinky stuff. It works but everyone in the house knows when I'm using it. Water and ammonia based solvents are said to work well. Navy Arms sells corrosive ammo cleaner on their surplus rifles web site. Clean the barrel, bore, chamber and gas system with cleaner designed for corrosive primers. Don't worry so much about everything else. The primers are the concern and unless you get a blow out, it's all going forward rather than backward. I follow up my cleaning for corrosive ammo with a normal cleaning with Hoppes or similar product. Sure, it's extra effort but I'm not going to trash perfectly good ammo. I'm more cheap than I am lazy.