If your looking for a cheap and easy way to clean your brass without spending $200+ on a wet tumbler, I go with the following method. I soak the brass in a bucket with warm water, dawn, and vinegar. I let it sit in there for 30-45 minutes, and occasionally stir it up. Next I throw it on a screen and set it out in the sun to let it air dry. Some brass wont completely dry out, so I throw it all in the oven at 200 degrees for two hours. From there, I will throw it into a standard tumbler with walnut media to help clean the interior of the cases, because the previous steps only remove the tarnish. The brass comes out looking great. The greenish brown tarnish is gone, and the brass has a shine to it. Its not as shiny I have seen from wet tumblers, but for the price, it cant be beat. I've used this method to clean .30-06, .45 auto, 9x19, .40SW, .30-30, .223&5.56, and .38 special.