I have a Bushmaster ORC .308, +/- 800rnds fired, meticulously maintained and has always functioned flawlesly, even during break-in. I only run good to high quality new ammo. Went shooting yesterday, got this rifle set up with 5rnds of Federal 168gr Sierra Matchking BTHP. Fired 1 rnd and the bolt jammed forward, jammed tough. My friend was watching and swears the casing wasn't ejected, I looked for it myself with no success... but I'm not CERTAIN that there isn't a live round in the chamber. I have tried the butt strike several times but don't want to get any more aggressive and risk some major damage just because I'm frustrated, know what I mean? What would you do?