There is a blackpowder group down in that area. Longrifles
Sure Buck will be along.
If you are not tied to the area only look up the N-SSA. We shoot all the Civil War guns and live fire cannons, mortars and howitzers.
most any outdoor range allows black powder
as @Mr.Gadget stated, the Cross Creeke Longrifles (now the crosse creek rifle and pistol club) have a club/range south of Fayetteville a short way (south of Grays Creek off of 87)