I am currently using walnut media in my vibrating tumbler, will ceramic media work well in a vibrating tumbler or would a rotation tumbler work better, I need an easy way to get the inside of my .40-65 clean
My buddy who is a regular bpcr shooter and competitor uses a rotation tumbler and ceramic media. I don't know his full procedure, but his brass comes out looking new. The link below might help you out.
Flitz will make brass look brand new. Getting the inside of the brass spotless won't always happen with walnut media but it works as well as I need it on regular centerfire rifle brass. And I understand the concern for what the OP is trying to get.