I recently purchased a brand new never out of the box Rem. 700 and after about 250 rnds the damn thing failed to cock. On just about every 4th or 5th round I'd notice the cocking indicator was in and not out. Took it to my armorer and he took it apart and advised that the sear screw was over-adjusted and a second screw (can't remember what he called it, but remember something about trigger release?) was improperly adjusted. He said both of these screws would have been touched last by the person who assembled the rifle. Has anyone else heard of this happening?