This is the Effective Range Target for mule deer. In this example, the shooter's effective range is 200 yards because all five of the shots are inside the 200 yard circle. The target itself is placed at 100 yards away from the shooter. If you can shoot a one-inch group at 100 yards you will be effective at 600 yards -- but these targets should be shot at from regular hunting stances, not from vises or sledges.