They have not allowed any civilians to shoot at Dekab county police range for almost 8 months. If you do happen to want to go you need to call the number 770 484 3045 and clear it with them on the 1st and 2nd friday of the month.
Not really a great deal if you are interested in practicing on a consistent basis.
There is a day use fee at Charles Elliot. Or you can buy a wma stamp and its free after that. I use that range often. Its nice but a bit away from Newnan area. They have covered shooting areas with concrete. Max range is 100 yds. There is a modified, single seater outhouse only for nature calls.