Unless you are shooting something like an elk, moose, bear, or hogs. I wouldn't even touch the GMX or Barnes for deer. Those bullets are meant for the most penetration you can get with the highest weight retention. Granted I know a lot of deer have been harvested with them but I know a few cartridges that the bullet hardly expanded on the deer and just left pin size holes and didn't really do anything to the insides. Being in GA you are fine with what you use now. Why fix something if it isn't broke? Stay with the tried and true that has worked for you.