I had nothing but problems with two boxes of .300 Win Mag Nosler Brass, primer pockets cut way too shallow, had to cut .006” out of them before I could seat a FED215M primer flush with the cas head, and every piece was Undersized in OAL. Emailed Nosler with pics of measurements and they said it was close enough and didn’t even want to see it. Lasted two firings. I won’t buy Nosler Brass again, I went to Peterson for my .300 and have been extremely happy with it.