I think it was a setup to show the blowup of the Browning and Remington barrels. Please note in each case where the barrel held together, the rifle recoiled backward on firing. The Browing and Remington were held VERY solidly and no movement of the rifle. The barrel is a just like a water hose and will expand and contract as required. Upon instant of firing both bullets moving down the bore contacted a second obstruction, vise jaws. Barrel could not expand to allow passage of two bullets and came apart! Was a setup!! TF