Like many above, if only one, 30-06. It works and is not fussy to make shoot at all in any mechanically sound rifle with a variety of weight bullets.

Brass is everywhere, I got several thousand brass most of which was given to me from a variety of people that don't reload. Once fired factory Remington core lokt is 10-1 the ammo of choice or I'd pick up the same for $2 a box at flea markets. I like Remington brass.

Chances of neighbors that hunt/shoot having at least one 30-06 in the stable or as their only rifle, is pretty high. Take from that what you will, if dire things in a community would happen where people have to organize.

30 caliber bullets were far and away the most available during the long stint when everything seemed out of stock both online and local. Lots of things to make a 30-06 a wise choice to keep at least one around. Not the least of which again, it works.

One is alone in a land so vast, there is only the mountains, the wind, and the eyes of God.