This is a ford vs chevy debate. In most of Louisiana, your shots will be less than 100 yards. Any gun from a .243 up to a .308 is perfect here. Not much since getting an 'ultra magnum' to shoot an animal at less than 100 yards and weighs less than 200 lbs. One thing is you want to be comfortable with the gun, too many people buy these large calibers and don't like shooting them because they kick too much. The only way to get comfortable is to shoot it often, my wife and I both shoot 7mm-08 and love the caliber. Flat shooting, knocks em down, and very little recoil. I would suggest a popular caliber just in case you run out of bullets and have to run to the store. The chances are much better that the local store has 30-06 bullets than 7mm Ultra Mag or .270 super heavy magnum weatherby blahblah