G.A. Heath wrote:I clean them after shooting and once a month if carried. If they stay in the safe unfired for a while I typically pull them out check them out, oil them, and return them. As for harming the internals it only harms them if you detail strip and incorrectly reassemble them.
The only exception to the above would be if you use solvent when not needed or in excess, or if you should use any brush made of a hard metal (if you're going to use one use brass).