Last year,I shot a 180 pound buck with Hornady 165 graid SST at a full trot and he moved exactly 18 inches, straight down. Two days later I shot a 150 pound doe, through a 6 inch tree at dusk which went through the tree, ten feet further and then through the deer double lung and heart out the other side. She ran 75 yards. At twenty dollars or less a box I don't think I need to find another bullet.