This is in the 'for-what-it's-worth' department, as I've never been hog hunting.
But just yesterday, ironically, was discussing this same issue with an 84 year-old gentleman who owns a rather large ranch in Texas. He noted that his ranch is plagued by hogs.
He stated that he's tried many different firearms, including shotguns, which he dismisses, and stated that his favorite hog gun was a lever-action .45-70.
He stated that it was the only round he'd ever used on the large hogs found on his ranch that was 100% effective. Just food for thought.
Treat everyone you meet with dignity and respect....but have a plan to kill them just in case.