I have loaded for three different 280AIs that were all made before Nosler starting making their brass. All my 280AIs were formed from Rem brass. When the Nosler brass became available, I switched to it in all three rifles. Never had a problem. I read the above on the Nosler site and then measured the headspace of unfired Nosler brass with fired neck sized brass. There was 0.009 difference. I have seen much more with belted mags. Never had a problem with the Nosler brass and will continue to use it. I hange the dimentions more when using Rem brass to form the AIs.Rick.
