RE: Some rookie questions
Just remember that hogs are bullet proof. They dont call them the poor mans rabid deranged psychotic killer grizzley for nothing. I have even heard from a person who knew someones uncle that talked to a kid that saw a story of a hog chasing someone down and eating them. There are even reports of a new Icelandic hog that preys on Baluga whales when they get near the iceflows. I would not hunt them with anything less than a 375 H&H or maybe a 416 to 500 caliber.
Seriously every gun you list will kill them dead as doornails. As for different than deer they have MORE sensitive noses than deer which is really saying something and they are pretty damn smart.
One other thing, forget about shooting the big ones unless you want photo's. The big ones are pretty gamey but a nice 30 to 80 pound porker is fantastic eats.