I just fired a Nemesis Arms .308 with Hornady 150gr SST factory ammo. Out of the 9 rounds I fired, 7 were stuck in the chamber, and had to be rodded out, (2 of them punched out the primers). The last one separated at the base. None of the rounds felt hot (even the last one), and I had already fired 10 rounds from the same box of ammo in my FN A3G without any problems. Any ideas on what went wrong. Thanks in advance for any help