I'm coming to the experts here with a slightly off-topic question. I have read that lead-core jacketed bullets can be lubed and resized (for example, from 9.3mm/.366 down to .358) with a pass or two through a Lee resizing die. My question is: Can a copper bullet be resized? Using the same example, do you think I could successfully resize a Barnes 9.3mm TSX flat base down to .358. I thought I'd ask because I'm thinking that copper, soft though it may be, is not as malleable as lead. And that 286 grain TSX would make a heck of a .35 Whelen load. Whaddyathink?
