I believe that is my point. The timing and strength has nothing to do with it. I was the commander's gunner on a .50 caliber machine gun because I was a good sh

I believe that is my point. The timing and strength has nothing to do with it. I was the commander's gunner on a .50 caliber machine gun because I was a good shot. The barrel "travels" upwards. It isn't really about holding it down, it is just the physics. Have you ever fired a fully automatic weapon?