I agree almost 100% with Stan's observations on gun cleaning, and feel that obsessive and repeated cleaning of already clean guns may indicate mental problems in some individuals.

The only slight deviation I have from Stan's ideas on gun cleaning is his use of RIG to protect the bores of black powder guns. I used to occasionally have slight after-rust with my muzzleloaders, no matter how carefully I cleaned and oiled the bores. A clean patch ran through the barrel a few months after cleaning would often be tinged with rust color. So I also began using RIG for longer term protection, which helped a lot. Then I switched from petroleum based patch and bullet lubes, and began using Thompson Center Natural Lube. Now I clean my black powder guns with nothing but hot water, dry the bores thoroughly, and give them a light coat of the same Thompson Center Natural Lube. My after-rust problems are a thing of the past.