Brian Pfleuger
Moderator Emeritus
reynolds357 said:...has not blown up yet.
Of course, that's not really the standard.
I would ask, how many loads do you get before the primers start falling out?
Besides, generally speaking, what ever difference is between two cartridges when loaded at SAAMI max, there is very likely to still be if they are both loaded to the same level beyond SAAMI max, particularly when the cases are so similar as the 26 Nosler and the .264Win Mag.