I've got about 1K 200 gr plated (load as lead) bullets that I purchased years ago when I was a noob. I'm thinking these are best used in 10mm loads, but I don't own a 10mm and am wondering if anyone had loaded these in 40 and what were the powders used. I've looked at other sites and the consensus is to use them very carefully in the 40 due to high pressures and what not. Thoughts anyone? Suggestions? thanks!