Added gas checks, shot into milk jugs. Penetration 8 jugs. Then shot 1 jug, 1" pine board and found the bullet in jug 8. Perfect expansion. .90 and .91 caliber respectively. I can't wait to take an Elk with it. Rifle was Marlin 1895 Cowboy model jm stamped. Velocity of load 16 68 fps. Mike, Wyoming