I bought a tumbler from Harbor Freight. It's small, but works great. It gets my brass really clean. I can tumble roughly 100 cases of .45 a.c.p. or 200 rounds of 9mm. using stainless steal media. I put in my dirty cases, the stainless steal media, a pinch of Lemi Shine and a few drops of Dawn dish soap and fill it with water. Seal it and tumble it for around 4 hours. When finished, I separate the cases from the media and put the cases on a towel out on my porch overnight. 100% dust free.
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