I would tell you to listen to slowdraw, but my two cents would be to save your money and buy a good rifle when your budget allows.
Just like everyone else has said, the deer in North Carolina are not very big and you do not need a cannon to kill one. The .300 Winchester Magnum would be over kill for something where a large deer might weigh 125 lbs and an average deer might only weigh 70 lbs.
I would save my money another year. A good hunter can get to within 50 yards of any deer and maybe what you need to do is to get together with a bunch of other hunters and put on some drives to see deer and then the 30-30 would come in handy for close up shooting.
You can't make up for a lack of experience with a gun that is too big to do the job. Like I always say - dead is dead. It doesn't matter if you shoot them with a .22 or a 416 Rigby. Once they are on the ground, it doesn't matter what you used to kill them with.
Some guns just makes a little more noise and a lot bigger hole.
Neither of which is good if you want to keep your hearing or eat what you shoot.