I could probably strike my .355's with a lightweight hammer and not set them again. All of that to claim that with the real 9mm die you need to get plenty of neck stress. SmokinNJokin wrote:In my research, I've landed to the summary that crimp is significant for lead ammo https://tysonzludn.blogscribble.com/36446616/9mm-reloading-brass-an-overview