off track
This is sort of off track, but close enough. If I'm off base, slap me down.
I knew two "professional hunters" for the US Gov't who killed wild hogs in the NP's. They were regular backwoods hillbilly types, great shots and very woodswise. Both hunted with Savage 34 (340?) .22 Hornets and a reload using a .22 FMJ. Johnny had bobbed the barrel on his rifle to make it lighter and more handy. They shot exclusively high in the heck behind the ear and killed a bunch of hogs. Johnny held the record for kills for many years. Most of their hunting was stalk hunts, not over bait but covering ground in hog country. The Hornet was their choice as it was not loud and did not draw attention to their actions with other park users. The ammo and rifles were not heavy either. Neither were big guys, wiry ridge runner types. I had a chance to buy John's Hornet, and regret now I did not. It really looked the part of a pro hunters rifle. Weathered, scarred, but mechanically sound. Crazy guy had a M16 bird cage suppressor threaded on the end of the bobbed barrel, which was a turn off for me. Wish now I had bought it. He bought a new Ruger 77/22 Hornet.
Eventually the NPS regulated their activity, some admin type feared for their safety, and hoghunters were issued Ruger stainless M77-II 30- 06's.