Recreational hunting is a vital cog in managing feral swine, but it is only effective if you kill a concentration of pigs. The AR-15 w/ 30-round mags is the perfect tool for the job.
The pigs do not cooperate, as they scatter with gunfire, so if you are facing a herd of 15-20, the best bet would be four hunters with AR-15s, with very, very clear fire zones.
And I would hazard to guess you will still lose 3-5 of them.
And you’re also going to need a flatbed truck with small crane to police them up.
There is a reason that the professional hunter in the video uses night vision and is more than happy to have help along. Doing this by yourself is like doing an 8-hour, cross training workout of running and power lifting.