I had the same thing happen to my new RCBS dies a few months back. It was just surface rust from my fingers where I was handling them. The inside of the dies were fine. I took some "0000" steel wool to them to get the rust off. Then used some Birchwood Casey Barricade on them and stored them inside. Just clean the oil off before use.
"The single biggest problem in communication is the illusion that it has taken place." - George Bernard Shaw
Last edited by delta tide; July 21, 2012 at 05:53 PM.