ORIGINAL: Planter
I do believe a .22 would do the job but what possible reason would there be for that choice. Unlessyou were a "really" great shot and that was all you had with you. It just seems a little on the light side especially if you were to try for a lung shot. I guess I'm missing something.
22-250or 200 warbird etc are all big rounds that have more than enough punch to kill a hog..