If you decide to get rid of your Tumblr or ultrasonic cleaner, shoot me a note. I have use the vibratory media cleaners before and I’m willing to try other techniques.I have a Thumler tumbler but never use it. Vibratory with corn cob media is the easiest way to go. Your choice though. You will end up with beautiful brass that will probably have water spots and will be harder to run through a press than vibratory cleaned brass that has some cleaner-lube added to it with corn cob media. We all learn from our experiences and reloading is definitely a learning experience. If I had it to to do over I wouldn't have bought a SS tumbler or an ultrasonic unit.
I do have an old harbor freight concrete mixer that I’ve had for about a decade. I’ve used it for cleaning car parts, nuts and bolts, fittings, just about anything I could fit in there that wouldn’t get damaged , when I was working on old internationals. Oh yeah, I have also used it to mix ~26,000 lb of concrete mix since I moved to TX (2 years ago)
Some silica blasting media, water and Dawn dish soap did an amazing job on derusting and degreasing the parts.
I did consider adopting it for the brass, but it is just so loud and big, it has to be run outside due to the size of it. I didn’t think my neighbors would appreciate listening to me tumbling brass in it. LOL