Originally Posted by hextall2727

I just got a new M&P 10 Sport. I cleaned and lubed it according to the instruction booklet. When I chambered a round I could pull the trigger until it "fired," but the round did not actually fire. The round was stuck in the chamber and no amount of pulling on the charging handle would eject it until I "mortared" the gun to eject the round. I tried with another round and had the same problem. I disassembled and reassembled the rifle several times but had the same result each time. The round chambered correctly but I couldn't eject the round without mortaring it.



Have I assembled the rifle incorrectly or is this a manufacturing issue? I'm using Federal Premium 168 grain 308 win ammo.