The Lortone QT12 looks good.
What about the "Thumler Model A-R18 Rock Tumbler"? The two 9 lb chambers might be nice to tumble two different groups of cartridges.
I just tried my first batch in my new Lortone QT 12. 200pc .45acp with 4 pounds ss pins. Water filled to about 2 inches above the pins and brass...(not sure if this is properly proportioned but i gave it a whirl anyway) Squirted a shot of dawn dish soap and let er tumbler for 2 hours. Brass came out very clean! Not as shiny as you see on the advertisements but I didn't use any lemishine. Anyway it was very quiet and easy to install. I strongly recommend this product


















































