One thing to keep in mind is the stands (and rail if all one peice) are stout enough to not allow the targets to fall off if the stand is hit. Some of our rails will let 3 or 4 fall with one rail hit, so you have to get a cease fire to go set them up again to continue. As for order, they can be set in banks of five next to each other or you can build stands that stack them, five on top of the other five like at Whittington. Just depends on your range layout and the size and shape of your berms.