Last month I bought a box of Hornady .454 round balls at a gun show. When I opened the box up later I discovered they are all oxidized, almost crusty. I'm not sure how this could happen unless they were under water at some point. I'm going to shoot a few Wednesday to see what if any effect the oxidation has on accuracy. If I need to I'll just melt them down and recast. Have you ever run into this?