This is like opening up Pandora's box, gonna get a LOT of different answers. Your basic AR or even an AK will work for the needs you listed.
This! Because you can literally walk into any hardware drug store meijers walmart dunhams ect and buy ammo. Andits good at a distance too30-06 is the most versatile caliber you can pick up......you can hunt anything from a varmit to a caribou......or in your case 300 pound walking dead.
Remington, Winchester or Ruger......pick your poison.
Agree.
OP - you need more requirements defined. Are you looking for a traditional hunting rifle that can also kill zombies, or an assault rifle that can also hunt? Must be semi-auto, or is bolt/single shot OK? What's your specific price range?
For a hunting rifle, I'd suggest something like a Remington 700 or a Marlin .30-30 with a decent scope + iron sites as a backup.
For an assault rifle, this is going to spawn a 100 page debate.... but will likely be limited by your funds. "black rifles" are not cheap. I'd prefer a HK MR762A1 or MR556A1, but that's just me.
I love my Remington 7600 30-06 pump
You can get a nice AR at most sporting goods stores on sale for around $700. .223 is really cheap too, as are most of the parts and accessories for those guns.
Mini 14