Garmin Foretrex 601 Ballistic Owner's Manual page 28

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AMB/STN PRESSURE: The ambient (station) pressure. Ambient pressure is not adjusted to represent sea level
(barometric) pressure. Ambient pressure is required for the ballistics shooting solution. Input field.
TIP: You can manually enter this value, or you can select the USE CURRENT PRESSURE option to use the
pressure value from the internal sensor in the device.
HUMIDITY: The percentage of moisture in the air. Input field.
LATITUDE: The horizontal location on the Earth's surface. Negative values are below the equator. Positive
values are above the equator. This value is used to calculate the vertical and horizontal Coriolis drift. Input
field.
TIP: You can select the USE CURRENT POSITION option to use the GPS coordinates from your device.
NOTE: The LATITUDE is used only for calculating the Coriolis effect. If you are shooting at a target less than
1,000 yards away, this input field is optional.
TEMPERATURE: The temperature at your current location. Input field.
TIP: You can manually enter the temperature reading from a connected tempe sensor or other temperature
source. This field does not automatically update when connected to a tempe sensor.
WIND DIRECTION: The direction from which the wind is coming. For example, a DIR 9:00 wind blows from your
left to your right. Input field.
WIND SPEED 1: The wind speed used in the shooting solution. Input field.
WIND SPEED 2: An optional, additional wind speed used in the shooting solution. Input field.
TIP: You can use two wind speeds to calculate a windage solution that contains a high and low value. The
actual windage to apply for the shot should fall in this range.
Target Fields
DIRECTION OF FIRE: The direction of fire, with north at 0 degrees and east at 90 degrees. Input field.
NOTE: The DIRECTION OF FIRE is used only for calculating the Coriolis effect. If you are shooting at a target
less than 1,000 yards away, this input field is optional.
INCLINATION: The angle of inclination of the shot. A negative value indicates a downhill shot. A positive values
indicates an uphill shot. The shooting solution multiplies the vertical portion of the solution by the cosine of
the inclination angle to calculate the adjusted solution for an uphill or downhill shot. Input field.
RANGE: The distance to the target, displayed in yards or meters. Input field.
SPEED: The speed of a moving target, displayed in miles per hour (mph) or kilometers per hour (km/h). A
negative value indicates a target moving left. A positive value indicates a target moving right. Input field.
Profile Fields, Bullet Properties
BALLISTIC COEFFICIENT: The manufacturer's ballistic coefficient for your bullet. Input field.
TIP: When you use one of the Applied Ballistics custom drag curves, the ballistic coefficient will display a
value of 1.000.
BULLET DIAMETER: The bullet diameter measured in inches. Input field.
NOTE: The diameter of the bullet may vary from the common name of the round. For example, a 300 Win
Mag is actually .308 inches in diameter.
BULLET LENGTH: The length of the bullet measured in inches. Input field.
BULLET WEIGHT: The bullet weight measured in grains. Input field.
DRAG CURVE: The Applied Ballistics custom drag curve, or the G1 or G7 standard projectile models. Input field.
NOTE: Most long range rifle bullets are closer to the G7 standard.
Profile Fields, Gun Properties
HORIZONTAL SIGHT SCALE FACTOR: A linear multiplier that accounts for horizontal scaling. Not all rifle
scopes track perfectly, so the ballistics solution requires a correction to scale according to a particular rifle
scope. For example, if a turret is moved 10 mil but the impact is 9 mil, the sight scale is 0.9. Input field.
MUZZLE VELOCITY: The speed of the bullet as it leaves the muzzle. Input field.
NOTE: This field is required for accurate calculations by the shooting solution. If you calibrate the muzzle
velocity, this field may be updated automatically for a more accurate firing solution.
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