You can hunt with almost any thing here in Florida. There are people who hunt with 223's and 20gauge single shots to 300 win mag semi-autos.
Long range shots don't happen that much around here, the 30 30 is a good choice, I know several people that kill a lot of deer every year with it, I have a collector 94 that I got from my uncle before he died so I kind of don't want to use it and they don't seem to holdup as good as a marlin which I'm think of getting.
One politician I know in Dixie county kills many deer every year with one. I used to make fun of him, calling him a murderer because he killed a lot of deer, but he, his friends and his family eat them all so if you can eat them, you can kill them. There is another old guy I know who kills several deer every year some with nice racks with a cheap old 12 gauge single shot like you use to by at the hard ware store.
The 308 is very good, has distance if you need it, you can use it in other parts of the country and it has some width to the bullet. I guess what I'm saying is shoot anyting that you feel good shooting. I hunt with a 270 but it's over kill in most places. I've seen hogs killed with 30 30's, 45's shotguns and knives. So it's really the man or person behind the gun.