I have seen the stainless pins in a Thumlers Tumbler, his media is the pins, one gallon water 2 tablespoons dishwashing liquid and two tablespoons cream of tarter. This brass looks better than new including the primer pocket and flash hole. There is a dealer for the tumbler on this site an maybe he will dial in. Gonna get me one as soon as I find a buyer for all the media and Lyman viberator I have know. Gettin to much stuff in loading room.
Geno
Geno