My Lyman 9mm die set included a "M Die" for case neck expansion. This die works well with lead bullets, however with jacketed bullets I do not get enough neck tension and experience bullet setback. My solution is to use a separate expanding die for the jacketed bullets, so I'm looking for recommendations for this die..RCBS, Redding, Hornady?? I think I need more of a cone shape die that just flares the end, similar to the Lee universal expanding die.