On the list of major things you missed is the taper crimp. You point out that it only crimps within the extremely conclude. Not true. A good taper crimp might be Virtually a one/16" long. Extra then extensive more than enough to generate up for almost any case duration variations. https://martinitcnv.blogolize.com/not-known-factual-statements-about-9mm-bullets-for-reloading-76642446