Hi as far as .004 your good to go, one firing will take care of that, as far cleaning you did hear that from me, but I use to put my brass, and stainless steel revolver 44 mag S&W, and my Colt 1911, in the dishwasher and put it on the pots and pans cycle, I kid you not I even put they water spots additive, the brass comes out clean just not shinny like a tumbler, and no it does not bugger up the dishwasher, this all happened while she went shopping or to get her hair done. LOL

Tanks Dean