7.62x39 or 30.06 are great calibers for hog hunting. I recommend setting up a corn feeder with a timer and game camera. You can use calls and hog-specific bait, but you'll see more success with a corn feeder and game camera while hunting from a blind or tree stand.
Hogs are mostly nocturnal, so you could set up "hog lights" on your feeder and get the animals accustomed to the light, or you can use spot lights with a two man team and/or rifle mounted lights if your solo. If you have a big budget you could use a thermal scanner and thermal scope/night vision scope or helmet mounted nv and red dot/passive ir laser, or you could cheap out and get a NV100 clip-on device and use a standard scope (like me). I sometimes use the NV100 as a handheld observation device and use a powerful rifle mounted light to take the shot. I've seen best results with bonded 180gr 30.06, with no hog (or any animal) being unrecovered. 7.62x39 is better than 5.56 for hogs (from my personal experiences), even when using heavy bthp or bonded. I really wanted 5.56 to be my goto for hogs, but it isnt.
I've seen great results with using "sour mash", "sour corn" or what my wife calls it "hog wine". You take a 5-gallon bucket with lid and fill it 3/4 of the way with deer corn, add 5-6 cups of sugar, 2-4 packets of yeast, 8-10 packets of cherry koolaid and fill with water. Let the bucket sit for 2-3 days in 70degree or more temperature and it will begin to ferment and become mildly alcoholic. Dump this bait on the ground in a pile, or dig a hole and bury most of it, or if you want them to stick around for a good while you can full up a PVC tube with holes drilled in the sides and chain it to a t-post.
Also remember hogs are smart and have a very good sense of smell. They will also charge and can be dangerous.