But the bottom line is they are not really any harder to kill than most other large game. When young we use to catch them with dogs and stick a knife in there heart to kill them. If a boar, cut there you know whats and turn loose again. If no knife shoot behind the ear with a 22 mag and try not to kill a dog too. If pinned up wild in a trap. Put a round in the back side of there head with what ever you had. Know an old guy now gone that used a 22 hornet for 50 years, hogs and deer. I used a 357 mag for lone hunting if only after hogs. Never a big deal. New some guys that did underground utilities, they allways had a cooler in the truck and a old browning 7mm rem mag behind the seat. If some one wanted a hog for a bbq they would shoot one going home or comeing in the next morning. Have it dressed and iced down. They killed many off I-75 a couple hundred yards off the fence line max..Depends more on how you are hunting those piggies to deside what you need to use to kill them..