Most of our wildlife management areas here allow hog hunting with whatever firearm is allowable for the game in season. Since small game starts first, and the hogs learn fast, that means your first and best bite at the apple is with a 22 or 17 rimfire.
Now the problem is the "apple" isn't an apple. I went out mushroom foraging/scouting sunday morning with my hunting partner, and the first field we eased up to had what looked like a half slumped hay bale that on closer inspection was sporting tusks and a tail! Farther down the field there was another about two thirds the size of the first. I was impressed by the spectacle of that much mass hurtling across the field when the second one finally spooked at my stalk at about 35 yds.
So, while I won't be gunning for a hog over 150 for eating, I'm wondering at the good sense of hunting these critters with a 22 or 17. I do a lot of squirrel hunting, so I'm not too worried about putting one in the ear at under 50yds... But those critters had some BIG EARS.
Anyone with experience using a 22 on pigs have a picture they could markup and share showing suggested headshot placement? I want to get some offhand and kneeling range time in before trying this.