More and more shooters are wet-tumbling their brass (in liquid) with reusable polishing media, rather than using dry media in a vibratory tumbler. The wet-cleaning method works best with a rotary tumbler fitted with a water-tight, horizontal drum to hold your brass, cleaning solution, and stainless, pin-type media.
Frankford Arsenal Platinum Series Rotary Tumbler with 7-Liter Capacity, Clear Viewing Lids, and Auto Shut-Off for Reloading, Cleaning and Wet Tumbling Brass Cases gray : Sports & Outdoors
Hornady Rotary Case Tumbler – This Wet Tumbler Cleans and Polishes Brass Cartridges Quickly and Efficiently – Holds 5lbs of Cases, Includes Steel Tumbling Media and 6 Liter Drum –
Lyman Cyclone Stainless Steel Rotary Case Tumbler: From Unboxing to Wet Tumbling Brass – Ultimate Reloader
The Lyman Cyclone Rotary Tumbler – from Hannam's Reloading by Vince Bottomley
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Reloading, Wet Tumbling vs Dry Tumbling, Best Way to Clean Brass for Handloading
Frankford Arsenal Platinum Series Rotary Tumbler with 7-Liter Capacity, Clear Viewing Lids, and Auto Shut-Off for Reloading, Cleaning and Wet Tumbling Brass Cases gray : Sports & Outdoors
Wet Tumbling Brass vs Dry Tumbling Brass: What's the Difference?
Gear Review: Frankford Arsenal Platinum Series Rotary Brass Tumbler (110V, 7L) - The Truth About Guns