Calculation of Leads Flashcards
To Determine Moving Target Leads
(Time of Flight) x (Target Speed) = Lead
Time of Flight
Flight time of the round, measured in seconds.
Target Speed
Speed the target is moving, measured in feet/second
Lead
Distance aiming point must be placed ahead of movement, measured in feet
Average speed of a man during slow patrol
1 fps/0.8 mph
Average speed of a man during fast patrol
2 fps/1.3 mph
Average speed of a man walking slowly
4 fps/2.5 mph
Average speed of a man walking quickly
6 fps/3.7 mph
Average speed of a man jogging
7fps/4.8 mph
To convert leads in feet to meters
(Lead in feet) x 0.3048 = Meters
Average speed of a man running
13 fps/8.9 mph
To convert leads in meters to mils
(Lead in Meters x 1,000)/Range to Target = Mil Lead