I don't think I'd take a .223/5.56 chambered AR on a hog hunt. Now, if it had a 6.5 Grendel, 30 Remington AR, 450 Bushmaster, or 50 Beowulf upper on it, I wouldn't hesitate to use it. Honestly, though, I think you'd be better off with a bolt-action 270, 30-06, or 308, but if your heart is set on an AR-15, go for it.

You're right about deer not being hunted during the summer. Deer seasons run from fall to early winter. In fact, there aren't many seasons open at all from May to August, so the likelihood of disturbing other hunters is almost nonexistent.