EDITED So as to add: all feed and load properly through my press, other than that S&B are occasionally really difficult to seat. The sole dud primer I have ever had was an S&B LP. I think it absolutely was missing an anvil. Acquire seems to hold the loosest QC https://louiswchjm.blogoscience.com/38008427/examine-this-report-on-federal-gm150m-primers