When you cheek weld, do you relax or tense the masseter muscle? (the muscle that closes your jaw) I’ve tried both ways and there are pros and cons both ways, I’m curious what the consensus is, and why. For the record: I don’t on small, light recoiling rifles, like rimfires or centerfires up to (Non magnum) 30 caliber; on magnums and larger rifles (especially light rifles of large caliber) I tend to clench that jaw, because I’ve found that relaxing the muscle does two very important things: 1: Gives me a bruise on my cheekbone, and 2: jars my teeth half out of my head. The clenched muscle acts as a sort of cushion to my face.