I had a batch of 223 mixed headstamp mostly military that needed the primer pockets swaged. I use an RCBS swaging die. Things were going along just fine till I noticed some pocket were swaged and some weren't. Then things went really bad I found a case with a very thick web. Put an "S" curve in my stem assemble. From then on I sort brass according to headstamp if I'm swaging the primer pockets.
only on 300BLK. some brass, i.e. GECO head stamp, the case wall is too thick causing failure to chamber.
Huh? Why would case wall thickness effect chambering? The resizing die sizes the outside of the case. So the external dimension is set. It is the internal dimension that changes.
How important is it to sort brass by mfg? I am loading plinking ammo in 9mm, 45, 223 and 308. I'm not really shooting for max accuracy or running at max loads.
For my precision loads I have brass from FGGM or Black Hills match, and I sort those, but do I need to bother for plinking stuff?