The opportunity to shoot sporting clays on hallow ground doesn't present itself that often, but you can do it in the area of Manassas, Virginia where the battles of Bull Run were fought.
Depending on which side of the Mason-Dixon Line you're standing, it's called either the First and Second Battle of Bull Run (as it's known in the North) or the First Battle and Second Battle of Manassas (the Southern name for it). The first battle took placed July 21, 1861 while the second, larger battle was fought August 28-30, 1862.
PO Box 6423
Thomasville, GA 31758