10 inches @ 125 yards, 13 inches @ 150 yards, 15 inches @ 175 yards, 18 inches @ 200 yards, 20 inches @ 225 yards, and 23 inches @ 250 yards.
Paul,
I enjoyed your article immensely. I do have a question. If your bead subtends 10" @ 125 yards, why isn't the ratio staying the same as distance...