I have a large number of collectable cartridges and samples.they have got stained and I put them in the tumbler until shining.sprayed them with clear spray paint.I have been tumbling live since tumblers came out.about 1968.
any one ever wonder whether military ammo gets rattled around.from factory to truck to warehouse to truck to boat to truck to dump to front. man you guys must be kidding.they may have taught you in school but did they teach you to think.if some one cant figure how many bullets in a lb.
and I am old enuf to be your grandfather.