Shooting today I had a round not fire. I was shooting Federal Match 168gr. .308. I thought that I might have short cycled the bolt when the gun went click, opened the weapon, out the round came. A good dent on the primer. Attempted to shoot it again, still a good dent on the primer but no go. It sounds like there is powder in the round, and I cannot figure out why this is happening (I am shooting in my state's police and fire olympics in about a month, all of my ammo is this lot). All of the other rounds in the box fed and fired with no concerns. A freak occurance?