Long guns for defense primary, hunting secondary. I picture 3 weeks after the collapse, medium game and domestic animals shot inhumanely, butchered poorly, meat wasted by hungry folks tired sick who empty their AR into farmers browns dairy cow. The ever popular survival rifles in 308 (M1, PTR, etc) are great for big game, but we don't have any here. And my guess no one will about 2 mos after the collapse. I'll be hunting pig, chicken, mongoose and after awhile feral pets for the pot with my hunting pistol, and save my larger caliber rifle ammo for predators.
If you've not read Patriots, there's a couple parts that demonstrate the value of a long gun for reach. Bunch of thugs blocking a road armed with shotguns and pistols would have difficulty against 1 guy with a scoped rifle 200yds out.