I’ve used acetone on a rag/paper towel to remove 45/45/10 from larger magnum boolets (44, 45, 50 cal) after loading them, just to keep any gunk from sticking to them. No harm (so far) in maximum loads (H110 for magnums and CFE-P in the Colt) in 44 Magnum, 45 Colt, and 500 S&W. I wouldn’t soak...