I would polish using ground corn cobs and if the cases are not corroded use them.
Personally I do not use ceramic or stainless media as the accumulated lead would poze a health hazard. I purchase either ground corn cobs or ground walnut shells from the per suplly store and discard the media when it begins to turn grey - it's cheap enough.
Personally I do not use ceramic or stainless media as the accumulated lead would poze a health hazard. I purchase either ground corn cobs or ground walnut shells from the per suplly store and discard the media when it begins to turn grey - it's cheap enough.