Trajectory Plot - Version V2.3 An exterior ballistics program. Includes ballistics coefficients for over 900 bullets. Find out how to sight in your gun on the range to hit your game under different conditions in the field. Since one often works up loads and practices with firearms in moderateto warm conditions at relatively low altitudes, and then hunts in typically much colder temperatures, and sometimes at high altitudes, this program is designed to help one in predicting the field results based onrange observations.