Thread: Case head separation imminent

I was given some ( 100 ish ) once fired factory cases - 270 Rem Corelokt that had been fired in an Xbolt. Those cases appeared to have a slight blown forward bulge between the shoulder and the start of the neck. They would not chamber in any of the three 270's I have. I used them for loads in the re-barreled BSA hunter with the overlength chamber and they wouldn't even chamber in that rifle without a shoulder bump. How much longer than Sammi spec that XBolt chamber was I can only guess