Hey fellas I wanted to see the expansion of a .50AE from a Hornady TXP hollow point. I loaded up a barrel with 20 gallons of water which weighed approximately 170lbs. In a "not so safe" way, I stood on a folding chair and shot into the water. To my surprise, the 170lb barrel jumped about eight inches in the air each time with two shots. Not very scientific but the power of the bullet surprised me. Wasn't till I saw it on video when I realized how strong the impact was. https://www.youtube.com/watch?v=AxVSdBtTodk