http://www.stainlesstumblingmedia.com/
http://shorinternational.com/TumblingMedia.php
Another example of not being able to keep up with more than one thought at a time, I have said I use vinegar for the worst of cases for a maximum of 15 minutes for the life of the case, because 30 minutes is neither necessary or healthy for the case, the acid in vinegar leaches out zinc, I have said I can use less time if I agitate the solution. In the old days B&M listed a procedure for cleaning cases with H2S03, 2% for a maximum of 2 minutes, then rinse in hot, very hot water, then rinse in cold water, WARNING!!!!! When finished the cases turn BLACK, BUT! the black cases are preserved....for ever, and B&M gave credit, they claimed it was an old army receipt.
Again, I use corn cob and nothing, not easy to get past the "I have been reloading for 50 years....etc.." but there is a time when someone should question the answers, stainless tumbling is not new, using an acid in solution is not new, H2S03 and vinegar (4% acid) has been used, on the worst of cases it takes a few minutes to clean the outside oxidation before the zinc and acid start to react.
Acid solution and stainless tumbling as a media, the cases being cleaned does not turn orange/pink because of the metal media is removing the orange/pink warning (to the reloader as in HAY!!! Something going on there, or here). The question? Is it OK to leach the zinc from the case, for me? Time is a factor.
Is the acid solution cleaning the case? Is the cleaning process accelerated because of the agitation? Will stainless pins clean the cases without the acid solution?
F. Guffey