radshooter said:I use something called "Krazy Kloth." Can get from Sinclair or other places. Does a nice job. It is a square cloth with some type of cleaner soaked in..you just rub the dirty cases with it then wipe it off with a dry cloth of some sort (like an old t-shirt) and they look good as new. I have one of the ultrasonic cleaners and my main issue with it is that it is fairly time consuming to dry out the brass when done.