Calculate the drag and drag force between two points.
The drag and Drag force is required for calculating the Drag Coefficient and an integral part of the process to determine/calculate the Ballistic coefficient of the bullet/projectile in flight. Two chronographs are required or a Doppler system that can read at two points. Enter the mass in grain, it will be converted to kg as SI unit of measurement. 1 grain is 0.0647989 gram.