Arc, we had thick wooden railroad cross ties on the ground of the 100/200 yard range. Had a high wall built too up near the head of the range to keep people from even being able to see over the top of the 200 yard berm - much less aim a shot. And some person still managed to shoot so short SEVERAL TIMES they were bouncing bullets into and over the top of the berm at 200.

"Just when you think that you have made something idiot proof, along comes a bigger idiot."