For years I just popped mine in a old kettle with a bit of detergent and a splash of vinegar and boiled them for an hour on my outside fish cooker. It worked great on everything from range pickup stuff that was so tarnished it looked black to my match ammo. Ammo came out spotless with the exception of the removal of cuprous oxide which is the reddish oxide not to be confused with cupric oxide which is greenish or black. It would take the black cupric oxide off but the brass would retain the cuprous oxide sometimes making the brass look reddish.
When I decided I wanted my brass to be shiny I made a rotary tumbler from some 4 inch PVC and mounted it between centers on a metal lathe, now I use a Franklin rotary, sometimes wet sometimes dry
Bookmarks