Howdy Cajun
I live in central Louisiana, so I assume you're talking about the black bears that live in the swamps hearabout. Any .30 caliber bullet should do fine for our local bears, Guys have been shooting bears with the .30-30 for years and the ammo you're talking about mimics (for lack of a better word) the ballistics of the .30-30. For hunting, I'd prefer the soft point ammo over the FMJ or hollowpoint, but if we're talking about a nuisance bear or hog, either of those would be fine.
Looters is another question entirely, and I won't go there.
Before you shoot a bear, whether nuisance or not, make sure you understand our laws regarding that species. In some parts of Louisiana bears are still protected and the burden of proof is going to be high if you have to shoot one. In other parts of the state, they are game animals and the exigencies of the season will play a role in determining culpability. Be forewarned and forearmed.
Hogs have generally reached a status where they are considered pests and can be taken anytime.
So, you've asked three separate questions that might have three separate answers.