I am not a large guy, so I prefer to use a 6" barrel. INside 50 yards you don't need a scope. Scopes make 44's into 100 yard guns. Frankly I prefer to hunt with pistols / revolvers using open sights and tracking / stalking the game to close range.
Either should do well, but since you are going to be "close range" and you mentioned hog I would again second the 6" barrel for the handiness factor. Hogs do 1 of 3 things when shot:
1.) Die
2.) Run into brush
3.) Run at you with a murderous rage
If 2 or 3, a shorter handgun might be more handy. I wouldn't go below 6" for a full time hunting handgun though. As a backup to a rifle yeah, but not for a primary.