Most everytime I go to my club range there is usually a lot of .223 and 9 MM brass left there by fellow shooters who don't reload. I pick this stuff up off the ground until my back starts getting sore. I usually bring a box when I go to put it in. When I get home I sort it out. A lot of it is dirty from laying there for God knows how long.
The first thing I do is run it through 2, 480 second cycles in my Ultrasonic Cleaner with hot water and a squirt of "Dawn" dish soap, and the stuff comes out as clean as new inside and out. I rinse them out in hot tap water, I then spread them out on a old terrycloth bath towel that has been relegated to the garage for car drying. After a few hours out in the Sun they're ready for reloading. Brass is getting expensive, and this is a great way cut costs and get to shoot more without spending any more than you have to. Bill T.