This is why God made the .308.


It can do anything in North America and there is a plethora of cheap, very high quality military ammo out there. Plus it's so common that almost any rifle you decide on will be chambered in it. Plus it's probalby the tamest .30 caliber in terms of recoil and cost. It's a very good performer up there with the .270, .280 etc. Add also that it can be had in a wide selection of bullet weights, and per grain of powder it is the most efficient cartridge out there.