I don't go outside because I am afraid of being hit by a meterorite, but I have tumbled live rounds before. 
I had a bunch of .45 ACP and a few had been handled by someone with sweaty hands and left fingerprints that had been there for years. I tumbled them for about 30 minutes. I checked them a couple of times during the process so I wouldn't overdo it.
I had a bunch of .45 ACP and a few had been handled by someone with sweaty hands and left fingerprints that had been there for years. I tumbled them for about 30 minutes. I checked them a couple of times during the process so I wouldn't overdo it.
