Belle has her 9mm XDM. Once we recover from this semester's college tuition and a down payment on a new car, I'll be looking to get a pistol as well. Most likely I'll get a 9mm. Mostly from an economic standpoint. One caliber, bought in bulk for the two of us. The other thing on my bucket list is a really badass Evil Black Rifle. Bluesun bought a wicked looking .308 (I think it was) not too long ago, which elicited an almost inaudible "oooooooh, waaant!" from kx59. (geez, so many posts, where they heck is that? oh, finally, there it is.)
But my mind runs to economy and availability. I want a caliber, with which, I can go to the range, fire many many rounds and not walk away with acid reflux each time I go. Practice makes perfect.
So, what's the most economical caliber with midlin range and stopping power?
Another stray thought that has been bouncing around my brain, where rifles are concerned, is; if the shinola were to totally hit the fan, as in zombie apocalypse, what would be the most ubiquitous rifle caliber that could be scrounged?