I can attest to that. I shot a large bodied 4 pointer 2 years ago with the 325 grain Leverevolution and the deer ran about 40 yards before collapsing despite being hit in the vitals. On field dressing I found the entrance/exit holes were exactly the same size. However, I shot a black bear with the same ammo a few days later and it dropped right in it's tracks dead. This time there was a large exit wound.