Originally Posted by Champlain Islander

An arrow will certainly drop more than 4" at 40 yds no matter how fast it goes. That is just physics. Arrows come off the string climb to the line of sight then fall as the trajectory completes as gravity takes over. To use a single pin successfully out to 40 yds the zero point (line of sight) has to be adjusted out past 20 yds to closer to 30. Similar to sighting in your ML to 2" high at 50 to be zero at 100. If you need more range then adjust higher at 50 to push the zero out. Arrow goes up then down. Total rise and drop will equal much more than 4" but it is possible to have a 4" drop at 40 from the zero point depending on the zero yardage. My own 1 pin set up is good to 33 yds. I know at 15-20 yds I will hit slightly high but still in the vitals.