You'd better look up the words "over kill". There's no such thing!
Dead is dead and you can't do much more than that.
I've used my 577/500 Magnum NE on squirrels and it's not "over kill"!!!
hell my partner and I are the only dealer in Wy, UT, MT, ID, and SD for Mcrea stocks They are hard on yotes, .338 300gr sierra MK comming out at 3600fps will inflict damage on anything. Eats .50's alive. Direct dealer for the only man who makes Cheytac actions and that's Barney Lawton who is now deceased. His boy runs the company. Fun gun, have experienced them in .338, .375, and .408