If you use the media that has red rouge on it, be sure to wash the brass prior to running it through the full length sizer or neck sizer or the rouge on the brass will scratch your dies!
Don't buy the treated media! I used the Lyman red rouge media once and it left a coating of rouge inside every case. Ended up washing the walnut shell to remove the rouge ad re-tumbling the cases.
Buy the lizard bedding as advised above, add a little liquid car wax if you want. Walnut will do in one hour what corn cob will do in two hours.
