Among the huge stuff you missed is the taper crimp. You point out that it only crimps within the pretty stop. Not accurate. A good taper crimp is going to be Virtually a one/16" extensive. Additional then long more than enough to create up for virtually any case length differences. https://9mm-bullet-casing63062.ltfblog.com/36340322/the-best-side-of-9mm-casing