We all know that most chambers are cut for 5.56mm NATO. I've yet to load my first .223 round. I do load for everything else and know all about partial sizing and setting back the case shoulder. But this is for an AR-15, so I can't check it by feel.
Do you guys just full length size in .223 dies and bump the shoulder back every time? I wonder because if the NATO shoulder is slightly longer, brass will get worked quite a bit.
Last edited by JD45; 04/14/24.
