Ace tactical shooter and gunsmith Jim See of Elite Accuracy LLC recently tested a Frankford Arsenal rotary brass tumbler. Like the older Thumbler's Tumblers, this can tumble your cases in a liquid solution. The wet-tumbling process worked very well Jim reports.
An alternative 2-step method for wet tumbling your brass in the
Step-By-Step Guide To Cleaning Brass With A Wet Tumbler
Wet tumbling with sanity - Reloading - Oz Gun Lobby
Wet Tumbling Issue
DIY: Wet Media Tumbler (Pic Heavy)
Reloading, Wet Tumbling vs Dry Tumbling
Get Brass Super-Clean — Wet Tumbling with Stainless Media « Daily
Homemade Brass Tumbler
Wet-Tumbling Cartridge Brass with Rotary Tumblers « Daily Bulletin
Reloading, Wet Tumbling vs Dry Tumbling
Wet Tumbling with Ultimate Reloader
Wet tumbling without decapping - my little experiment