No size magazine limit on varmint hunting, and if my uncles property had a feral hog problem, I would have no qualms about using my Yugo AK variant to help out. I do have a five shot mag for it, and a few boxes of 154gr SP ammo that seems to work.
I use my Yugo M70AB2 in modern military matches at the local rod and gun club. Collection as a historical curio has been recognized by court rulings and AG opinions as a lawful ownership/use of guns in Tennessee, though, and "it's for hunting" is OK too, but not mandatory.