Hi, I just bought a couple of RCBS die sets and one of them is listed as having slight rust on the outside. The inside appears mirror bright but there is a discoloration on the outside. It is rust color but it appears to be almost a patina. Anyone have a product or? that I can get to test what I've got? Anyone have a suggestion on what I can do to make sure this doesn't go any further. Thanks, Mike

A fine wire wheel on the bench grinder will get rid of the rust just fine. Lightly oil after the wheel work, store them in a dry place and they should be just fine.

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Lightly oil after the wheel work, store them in a dry place and they should be just fine.

I just got back into reloading after laying off for a few years while moving about and all my RCBS dies had the same thing to one degree or another. Craigster is correct - they will be fine after you clean and oil them. It is the inside that is important anyway.

You might consider putting a coat of auto polish on them. This will help prevent rusting.