This is super funny, I just went shooting with my son yesterday, he had a new Glock and my 1911, came home dumped a couple hundred shells in the tumbler, I went to reload tonight and for whatever reason I looked at the headstamp and noticed the small primer, I've been reloading 45 ACP's for 30 plus years, I've shot IPSC& IDPA and reloaded thousands of these, I told him look before buying anymore, we spent an hour picking that crap out, Don't know for sure if they would mess up a Dillons mechanism or not, What was the reason for this change and are they all going "small primer"
Thanks