Thanks for all the information. I am confused on one thing! I asked about cleaning loaded ammo with a VIBRATING cleaner. Reguardless of what your answer was, is tumbling the same as vibrating? I intend to clean most of my brass when it is unloaded, but just wanted to see if some could be cleaned up safely for a few minutes in the vibrating cleaner. Is there a difference between tumbling and vibrating ammo?