338 Hog Hunter by Savage. Big bump up from 30-06.
http://www.galleryofguns.com/genie/D...&zipcode=95014
Nice price, good reviews, comes with iron sights, threaded barrel, handy length. 338 should give you range, but 20" barrel still handy. Could be "scout" or urban anti-bodyarmor sniper.
Only down side is ammo cost even bigger bump up from 30-06, but if you ONLY gonna use for pigs, might as well get a gun CALLED a Hog Hunter.