Just wondering which type of media you prefer to use in your tumbler, corncob or ground walnut hulls?

The brass I have isn't too nasty. I don't, and won't, be collecting any brass other than that which I fired. My 22-250 brass is pretty cleam except for a little powder residue and mild tarnish because it never hits the ground (gotta love controlled feed bolts, eh!). My .45 brass is a little dirtier because it hits the ground when fired (semi-auto pistol), but like I said, I only collect the brass I've just fired. I don't pick up the brass other people have left on the range that's had a chance to become really scuzzy.

Mike