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Try to pick a profile name you can differentiate from other gun/caliber combinations.
Picking your bullet from the Bullet Library will auto-populate the Diameter, Weight
and Ballistic Coefficient fields for your bullet.
Be careful when entering bullet diameter as many common caliber names do not
equal the actual measurement of the bullet diameter. The bullet library lists the actual
bullet diameter next to the commonly used caliber names.
Bullet Weight will be printed by the manufacturer on the box.
The G1/G7 BCs in the Bullet Library are lab-tested and more accurate than most
manufacturer data. For most long range bullets, a G7 BC produces more accurate
solutions than a G1 BC. If your source for BCs does not indicate G1 or G7, assume G1.
If you don’t have access to a chronograph, enter the Muzzle Velocity from the ammo
manufacturer or reloading guide and then use the MV Calibration tool in the app. (See
MV Calibration in Additional Tools)
We recommend using a distance of approximately 100 yards/
100 meters to avoid zero shift due to environmental changes.
Confirm your exact zero range with a laser or measuring tape.
Make sure the Elevation & Windage Unit settings match the turrets and reticle in
your scope. (MIL = MRAD/Milliradians, TMOA = True MOA (Most common), SMOA =
Shooters MOA, or exactly 1” at 100 yards)
Gun Profile Builder Tips
