I've been using Triple 7 in my TC Black Mountain Magnum 50 cal for 20 years +/-. I clean initially with Windex w/vinegar then hot water. My rifle is a traditional with cap lock so I can't remove the breach plug readily. A drilled out nipple with a plastic hose into a can of hot water then a tight patch on the rod suctions the war into the bore. Any ways when clean I make sure its as dry as I can then wipe Kroil in the bore and on the outside. Not a spec of rust, corrosion or any other gunk and doesn't have to be cleaned again until used again.