I have heard about reloaders who use pet litter for case cleaning so today, i bought a bag of this stuff.
http://www.petco.com/product/102881/...e-Bedding.aspx
I've been using corncob media for as long as i can remember and never had to replace it due to buying a large amount about 25 years ago. Today really opened my eyes to the benefit of fine walnut midia. I never saw anything from Lyman this fine and really had my doubts but all i can say is WOW! The brass looks new and is smooth as glass. You all have to try this stuff if you haven't.