Just a note on the 10mm, I have a couple of them and finding brass can be a bit difficult compared to everything else. I prefer to shoot 45 as you can get that anywhere. For now I have put the 10's aside and hope that one day the brass will be easier to find. Nobody even shoots them at my range so nothing to pick up off the ground but I do pick up 45's all the time. Good luck with your reloading. There is nothing like loading up a few boxes during the week and then hitting the range on Saturday morning.