Catmonkey,

Is a standard bronze bore brush an "abrasive" in this context, or could Lou_NC use one in a 646 cylinder?

I noticed the S&W manual that you quoted from used the word "erosion" [from powder burning], as opposed to "corrosion." Titanium is famous for not corroding when bare titanium pipes are used under the ocean.

How the heck are you supposed to clean the lead fouling out of an aluminum cylinder? A long soaking with old Hoppie's that contained benzene would have done it, but benzene was removed from publically available solvents quite a while ago. Without an easy substitute for an old fashion bronze bore brush, I'm sticking with steel cylinders.

Best regards,

Gil