Marlin 1984C in .357 Magnum. Can be used for SH/HD, hunting, and plinking. Can launch a 180gr JHP at over 1400FPS or a 158Ggr SWC with almost no recoil.
So, if the situation warrants, I can take a rabbit at 50 yards or a deer out to 150 or so. I can rapidly dispatch 10 zombies before reloading. I have enough oomph to stop a black bear. And if I'm truly hungry, I can even take waterfowl; hunger overrules sportsmanship.
One might argue that all this could be done with a 12ga, and he'd be right. But I reload .38SPL and .357Mag, so I could keep shooting a lot longer.