rost, for clarification, the 223AI has had great case life as does the 223. The short case life was that of the Hornady, SSA and RP 6.8 brass when the gas was stepped on in the 22DTI (22-6.8spc).
Interestingly enough, the large primered RP brass did a little better but I'm assuming Nosler is using a small primer in the rebated case...
