I use both an ultra sonic and a tumbler, for pistol brass, and just ultra sonic for rifle, as I only load for a 303 british and dont have much of it to clean.
But when I use the ultra sonic after I decap the brass I sonic clean then rinse and just shake in a towel to get most of the water out then just hit with a hair dryer, it will heat the brass up enough to evaporate the remaining moister, then tumble the pistol brass in my tumbler to shine. This methode for me really reduces the tumbler time.
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