Ok, I've only been hog hunting for a little over a year now, but I work to control the population on a 6000 acre ranch for the owner. It's more akin to a prairie dog hunt, but the dogs are larger and move around. I've hunted with dogs and a knife, but not owning the necessary dogs myself, I mostly rifle hunt. I've used a Savage 110 in 30-06, M1 carbine, M44 Mosin Nagant, NEF Handi Rifle in .223, and a Colt M4. All are scoped rifles. I also carry a pistol as I have to chase pigs into the brush at times and the ammo is cheaper for those all-too-often-necessary final kill shots. I've carried a S&W 36 in .38, a S&W 66 in .357, a 1911, and a Glock in .40. Lately I've been carry in the Colt and the Glock for the light weight and quick follow-up shots. I got 3 sows out of one herd the other day. The most I can usually get with a bolt gun is 2 and I can also do that with my single as well. So 3 was great. Could've been 4 if I was a better shot. Anyway, I drive around until I see some then get out and walk a bit closer. Sometimes I walk into areas that I expect pigs to be.
That's what I use and how I use it, just wondering what everyone else does and prefers.