It requires guns exclusively developed to handle the strain significantly above SAAMI established concentrations for even +P+. It should by no means be shot in a standard 9mm handgun. SmokinNJokin wrote:In my investigation, I've landed around the conclusion that crimp is essential for direct ammo - just as Len explained. https://9mmoncefiredbrass63962.blogdun.com/38342107/the-9mm-bullet-casing-diaries