Seems like the hogs around here are primarily nocturnal in nature. I've not had a lot of hog hunting experience. The two I've actually taken were both shot with a .30-06.
A .257 Roberts with a Hornady Light Magnum factory load won't break down a very large hog running directly away as happened to me once on a "control" hunt. Shot up the backside from 35-40 yards, he squealed, kicked up both hind legs like a bucking bronc and kept on truckin'. He was a big ginger-colored hog and the rancher found him dead a couple of days later at the bottom of a column of circling buzzards. He was happy to be rid of one more. This fellow was bedeviled by hogs a few years ago but went to work on them taking 42 one year and something over 50 the next year. It's been several years since he's had problems with hogs rooting and tearing things up around his ranch so he supposes they've moved on.
His primary hog killing gun? A Ruger Mini-14 .223 with 55 grain M193 FMJ ammunition, occasionally backed up by a Winchester Model 100 .308. He doesn't care about bringing them to bag but only wants to rid himself of as many as possible. The .223 sometimes worked instantly with precise hits but sometimes he found them dead later with the tell-tale buzzards. The .308 with 150 grain bullets puts them down with more authority, especially when they are far out in the middle of one large field he has. Same for the .30-06 I used on one in the same field, hit in the head broadside at 250 yards with a 150 grain handload wound tight.
Hogs are considered vermin in this part of west central Texas by most landowners who shoot them whenever possible.
From a stand, one would probably be fine taking even large hogs with precisely placed shots from an SKS or large caliber handgun but if I was to pursue it seriously I'd look to something with a bit more punch, beginning with the .30-30 with 170 grain bullets or some heavier cartridge.