Click the Options button at the top of the Trace window and then click the Calc Ballistic Coef option to open the dialog box shown below.


This dialog box represents a gun muzzle and two locations downrange. Above the wavy vertical lines that intersect the bullet's path are areas where the first and second velocity are entered. Just click on the value to highlight the edit box as is shown for the second velocity. Also, enter the distance between the two velocities. You can select Feet, Yards, or Meters for the distance...

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