Most of us have probably heard the story abut Morgan's Shingle where the test was to hit a roofing shingle at 250 yards. Well my question concerning this is at what range would most of these frontiersmen have had their rifles zeroed at? I got curious and loaded some data from my rifle into a ballistics calculator, in my rifle 90 grains of FFFg powder under a patched round ball gives an average velocity of right at 1850 feet per second. With those parameters and a 100 yard zero it would drop 61.3 inches at 250 yards and with a 200 yard zero it would drop 25 inches at 250 yards.
So with something the size of a shingle you would have nothing to reliably reference your hold over too. Now if it was against a tree that would solve the horizontal reference but not the vertical reference. So obviously if you are zeroed at 250 you are extremely high at closer ranges. Is there any historical record as to how the shoot was actually done was there something there to place vertical and horizontal reference for the shooter to align their sights. Or is this one of those things that has grown in history and the actual distance was much less than 250 yards?
So with something the size of a shingle you would have nothing to reliably reference your hold over too. Now if it was against a tree that would solve the horizontal reference but not the vertical reference. So obviously if you are zeroed at 250 you are extremely high at closer ranges. Is there any historical record as to how the shoot was actually done was there something there to place vertical and horizontal reference for the shooter to align their sights. Or is this one of those things that has grown in history and the actual distance was much less than 250 yards?