A can of brake cleaner will clean ANYTHING! Just make SURE you don't get it anywhere but IN the bore. If you do spill some, just wipe it off immediately & you'll likely have harmed nothing. Honestly you don't even need a soap & water bath at home if you can properly clean the bore, breech & lock/action with the brake cleaner. Just be sure & re-oil/lube the gun after using brake cleaner because it removes ALL lube, oil, grease etc...