How many people use a Lee Factory Crimp Die? A mate of mine talked me into using one on my .30/303. It crimps really well, with or without canulure, but it looks like it makes a bit of a mess of the top of the neck. Unfortunately due to a broken ankle I haven't had a chance to try them out yet. Will the crimp blow out when firing? just wondering if anyone had any experience using these crimp dies versus a roll crimp die? :?: