I have the kit with the powders but I haven't gotten around to trying it. I was going to start with Berdan primed 7.62X39, since I reloaded Berdan primed cases back when the Tula KV24N primer was available. This seems like the easiest route since there is no fumbling with the anvils. My biggest concern is reusing the dimpled primer cups, as I'm worried that they will pierce on the second firing. Pierced primers cause all sorts of problems. Does anybody know of a source for new primer cups or how to make them without a lathe and mill?