Originally Posted by Jordan Smith
Originally Posted by Axtell
Originally Posted by HandgunHTR
As for a ring forming in the neck, I have never experienced that and I have been shooting these types of cartridges for over 20 years now.


It takes many cycles to to realize this,
I’ve currently got over 20 firings on some lots of .243AI brass and nearly that on a couple lots of .223AI brass, and have not had any donut issues.

Always find some to turn off near the shoulder/ neck junction as the round count goes up.