Your Rifle Looney card is never in jeopardy if you clean fastidiously.
I decap, do the wet stainless thing, perform any annealing, trimming, chamfering, turning, sizing required and then use a vibratory tumbler with corncob pretty regularly heavily treated with liquid carnauba car
wax. The last step removes all lube and remains from the previous procedures, polishes like crazy including any leftover sharp edges, but also protects the brass from tarnish and I am convinced prevents the cold welding phenomenon. Makes me feel warm inside....
