I have no hogs in PA, never shot one either, so I'm no authority in practice or otherwise.
However, I can pass on the following observation:
Todd Huey of LoneStar Boars is a hog exterminator in TX. His weapon of choice is a AR-6.8 SPC. His goal is to kill as many as possible. He shoots other calibers to appease his YouTube viewers, but always returns to his 6.8 SPC. He did shoot a 277 Wolverine once (6.8 SPC's little brother) with great success. Usually, his maximum range is up to +/- 200 yards, as he hunts mostly at night with night vision.
IMO, if I was hunting in the daytime, with up to +/- 300 yards limit, I'd pick the 6.5CM, loaded with either a Barnes TSX, TTSX, or LRX in the heaviest bullet weight available. My shooting platform?
*For trophy or meat hunting...bolt rifle.
*With a "Kill them all and let God sort 'em out" mentally...AR-10.
Either way, I envy you having a hog hunting opportunity. I would love to try it sometime.
Blessings on your adventure!