I use the harbor freight dual drum tumbler and stainless chips. Two hours running with dish soap and hot water, drain that, one hour with cold water and a pinch of lemishine, then I dry in a toaster oven for 20 minutes at 250. My wife calls it easy bake brass,lol.
I’m a scavenger, so the leftovers from the range can be rather nasty looking, comes out shiny and the chips don’t get stuck in primer pockets. I figure it saves from possibly scratching a sizing die.
It doesn’t do a massive amount of cases, each drum will hold about 80 223’s, or 45 460 magnums. Plenty for me.