Judging Distances from Elevated Stands
When judging distance from a tree stand, use the horizontal distance, not the greater diagonal distance. In this diagram you should aim for 12 yards, not 13 yards.
To calculate the horizontal distance "a" from a tree stand to a target, with "b" being the height of your tree stand and "c" being the diagonal distance to a target (you can establish this number using a range finder), use this simple formula:
For example, if the tree stand is 5 yards above the ground and the diagonal distance to your target is 13 yards, then the horizontal distance is calculated as follows: