I have blown the snot out of a couple yotes with a 45-70 & a 444 Marlin, but they don't leave a huge hole in a deer. I post only what I have first hand experience with, not what I think will happen to a deer since my only experience is shooting a 25 pound coyote. Shoot any of the Marlin Big Bores, and let us know if you have found the "Marlin Grin"