220 Swift, man that brings back memories. I had a Ruger 77 Varmint that I used to shoot loooooooooog range crows out of peanut fields in east NC back in the 1980s. I was using IMR 4064 and the Speer 52 gr Match HP. With a hit it looked like you set off a hand-grenade in them. POOF or feathers. I have killed a lot of ground hogs over the years and I can tell you that sometimes I does not matter how much damage is done to them they will still crawl into their hole. Once shot one in the head with a 60 gr Sierra HP out of a 243 Win and blew its head clean off and it still made it, on muscle memory I guess, about 6 feet back just inside it's hole. On the other extreme my buddy shot at one with the same 60 gr HP out of his 243 had hit the ground just under the hog and it killed it in it's tracks. Upon autopsy, because we could not find a mark on the outside of the hog, we found that the bullet had not touched it. We assume that it had to be concussion because the rib cage was bruised and the heart and lungs showed trauma.
Strange things can happen.
Strange things can happen.