Bullet Weight: Weight of the projectile in grains. |
Ballistic Coeff: Enter the value listed in the manufacturer's data book. |
Drag Function: Select from the drop-down box. The function must be the same one used by the manufacturer to obtain their ballistic coefficient. |
Velocity: Enter the velocity of the projectile in feet per second. This data can come from the loading manual, but the accuracy of the model will degrade
if not measured. |
Chrono Dist: If you are measuring the projectile's velocity with a chronograph, enter the distance from the chronograph to the muzzle. Otherwise,
enter 0. This measurement is in feet. |
Sight Height: This is the height of the scope above the bore in inches. The measurement is made from the centerline of the scope to the centerline of the
bore. |
Zero Range: Enter the distance the rifle/pistol has been "zeroed" at. This measurement is in yards. |
Height @ Zero: This is an offset for projectile impact upon the target. If you want the projectile to strike the target 1 inch above the bullseye,
enter 1. This value is in inches. |