Come try out the Georgia Mountain Shooting Assoc. in Toccoa. We are hosting an Appleseed Shoot on 3-4 Nov., so you can shoot all weekend for $70. Shooting on the 300yd range, mmm, tasty!
More info at
www.appleseedinfo.org.
Alternately, try
http://www.gunsitehills.com/; they have a 700yd range there BUT you have to call ahead to make a reservation.