Whatever works best for you
I have hunted hogs with bows, knives, dogs, 30-30, 45./70, 7-08, 7 mag, 257Wby, 300 Win, 300 RUM, and 338 LM. Just make sure you are shooting a good strong bullet or broadhead. Most of my kills have been at night using solar lights and motion activated light under feeder or Hog pipe.
Alot of good infrmaiton @ wildhog hunters