I dont know the problem, but I have to second that the gun probably just doesn't fit you. I have had days where I go shoot 2 or 3 hundred rounds, and I have never noticed my face being hurt at all. My shoulder may be a little sore, but my face is fine. As far as the way I mount the gun, gun is on shoulder, gun swings up, face against stock, then press firmly back into shoulder, then pull trigger.