Oh my gawd, I'm gonna get some chit fer this..... I took somewhere between 200 and 300 hogs while I was stationed in Louisiana... (Over a 5 year period, and most went to the butcher for distibution at cut rate in Leesville, 'cause the meat tasted like a pine nut, and my wife have relative that were poor folks and it made her feel good...) I carried a large bore handgun for those days when something went astray, (which was damned seldom) and used a Ruger 10-22 with a 3-9 scope on it for the business end of the day. Plink, drop, plink, drop, plink, drop, go ge the truck and the beer....
Hogs die easy when you head shoot 'em. And thier dumb. dumber than your gun. With a .22 they look at the shot, then they look at their buddy that just went down, and then they go back to eating... so you can shoot the next one.

Head shots also keep the damned things from tasting so bad when they bleed out in to the meat... Even if you go big for a gun, stick to the head or you won't be thrilled with the taste. If you're looking for a mounted head, shoot 'em high in the neck with something wide and they'll drop like you hit 'em with an axe. The meat and hide is thick and tough enough it will break thier necks pretty easy with a large bore round. With even medium level stalking skills, you won;t need over a 75-100 shot unless it is extremely open terrain. (I didn't have any of that type terrian and most shots were 25-75 yards, with the longer ranges most productive because the herds wouldn't move off before you dropped a couple of them...)
PS... DO NOT, I repeat DO NOT! drop out of tree with a big knife and think you will kill a hog easy. Let my ego fueled stupidity and 80 stitch trip to the ER stand as a reminder and skip the trip yourself.... Not to mention that I almost got booted out of the military for gross negligence in the destruction of gov't property (me)....
what a dipchit I was in my younger days...