I have killed 2 hogs on the same sit with my bolt action .243 on a couple of occasions. I am not into taking out the entire sounder....I only take what I/buddies want to eat. Awesome renewable resource IMO. I like the .223 for single hits to the noggin, but any other placement and a hog with any size probably isn't going down.
I just bought a Weatherby S2 .308 in Hog Reaper camo and it is suppose to be my next hog gun (that is what I tell my wife anyway!) I got my daughter one in the compact size and with just plain black syn stock. Both guns have factory installed muzzle brakes (threaded for silencers, possible on a later date).