What would that caliber be? Mine would be 44 magnum. You can put it in a rifle and/or pistol. In a survival situation it could gather meat, defend your camp/home and can be shot by anybody in the family. I think 22lr is a good survival rifle. The reason I wouldnt choose it is because I can make good bows out of different woods, use a slingshot effectively and can build traps/snares, throw knives, tomahawks, chisels, long nails and other stuff. With those I can (done it before..) kill small game silently. The other down side to a 22lr is it is not a preferred SD caliber. If its an "end of the world" situation and you have to defend your camp/home its good to have a caliber that can take someone down without an absolute precision shot. The 44 magnum can cover basically all types of survival situations. So, whats your survival caliber and why? God bless.
Have to go with 22lr just cause of ease to get ammo or hord alot of rounds.pluse being in south florida..not to many animals I cant take out..Florida Lobster, Stone Crab etc....maybe I can trade 5o rounds of ammo for some sauce.
I voted .223, I have an AR-15, and a Lone Eagle pistol, you can get a barrel in .223 for the Thompson Contender, which I also have!! Its a all around caliber, a man killer and a small game getter. Load it with heavy bullets and use it for larger game, as in whitetails if you have to!!
A tough choice between 22lr and 223. I went with 223 because it's more versatile and I've stockpiled a lot of reloading components. I'm also tempted by 44mag because I can cast bullets for it. Should have also listed 7.62X39 and 7.62x54R.
I see the results and think they are reasonable for the question asked. However, I think the consensus I've read over time here better answers the question, "If you had one gun for all around survival..." the answer has been either the 22 lr or 12 gauge shotgun, with the edge going to the 12 gauge. Survival isn't just killing zombies, you have to take that turkey, pigeon, deer, and that rabbit for food too. But, good poll anyway!
afterthought: that double barrel 12 gauge with the 45-70 insert that the 'teddy bear hunt' youTube video shows is an interesting concept, especially if you could add a 22 lr insert and maybe a 308 (or pick you favorite) insert too to switch out.