Then I guess using subsonic rounds is not the answer?
Problem with sub sonic’s is ft-lbs of energy and range. Some of the guys are using subsonic 300 Blackouts with 208 grain rounds but they’re pretty anemic past 100 yards. So far the most effective way I’ve hunted hogs is from Helicopters but the terrain needs to be fairly open. Large volume traps work but they’re usually only good for one set and may take a couple of weeks to get the hog’s coming in constantly. Once you trip it they won’t come back. Ar’s work great but a shotgun is the preferred weapon if you really want to take off a lot of hogs.