I am in Georgia too, and also have a muzzleloader. However, I dont have a scope for it. If I did, I would use it for turkey because my shotgun is not really the best for turkey. Not that I am a bad shot, but I havent practiced enough with the muzzleloader.
I look at it this way. A turkey is a much smaller target than a deer. I have no problem shooting a deer with a scoped high powered rifle. In fact, I believe it is more ethical to kill an animal as efficiently as possible.

Anyway, I wish the season opened today because I have the day off from work. Good luck, man!