background image

TIP: 

You can manually enter the temperature, or you can use 

the temperature value from a connected tempe sensor.

WIND DIRECTION

: The direction from which the wind is 

coming. For example, a 9 O'CLOCK wind blows from your left 

to 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° and 

east at 90°. Input field.

NOTE: 

The DIRECTION OF FIRE is used only for calculating 

the Coriolis effect. If 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 YDS (yards) or 

M (meters). Input field.

SPEED

: The speed of a moving target, display in mph or 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, 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 MILS but the impact is 9 MILS, 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.

OUTPUT UNITS

: The output units of measure. MIL (milliradian) 

is 3.438 inches at 100 yards. MOA (minute of angle) is 1.047 

inches at 100 yards.

SIGHT HEIGHT

: The distance from the center axis of the rifle 

barrel to the center axis of the scope. Input field.

TIP: 

You can easily determine this value by measuring from 

the top of the bolt to the center of the windage turret, and 

adding half of the diameter of the bolt.

TWIST RATE

: The distance it takes for the rifling of your barrel 

to make one full rotation. Rifle twist is often provided by the 

gun or barrel manufacturer. Input field.

VERTICAL SIGHT SCALE FACTOR

: A linear multiplier that 

accounts for vertical 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 MILS but the impact is 9 MILS, the sight 

scale is 0.9. Input field.

ZERO HEIGHT

: An optional modification to impact elevation at 

zero range. This is often used when adding a suppressor or 

using a subsonic load. For example, if you add a suppressor 

and your bullet impacts the target 1 inch higher than 

expected, your ZERO HEIGHT is 1 inch. You must set this to 

zero when you remove the suppressor. Input field.

ZERO OFFSET

: An optional modification to impact windage at 

zero range. This is often used when adding a suppressor or 

using a subsonic load. For example, if you add a suppressor 

and your bullet impacts the target 1 inch to the left of the 

expected impact, your ZERO OFFSET is -1 inch. You must 

set this to zero when you remove the suppressor. Input field.

ZERO RANGE

: The range at which the rifle was zeroed. Input 

field.

Profile Fields, Gun Properties, Calibrate Muzzle Velocity

ENTER RANGE

: The distance from the muzzle to the target. 

Input field.

TIP: 

You should enter a value as close as possible to the 

range suggested in the shooting solution. This is the range 

where the bullet slows to Mach 1.2 and begins to enter the 

transonic range.

ENTER TRUE DROP

: The drop in MIL or MOA at the target. 

Input field.

Profile Fields, Gun Properties, Calibrate Drop Scale Factor

ENTER RANGE

: The range from which you are shooting. Input 

field.

TIP: 

This range should be within 90% of the recommended 

range suggested in the shooting solution. Values that are 

less than 80% of the recommended range will not provide a 

valid adjustment.

ENTER TRUE DROP

: The drop in MIL or MOA of the bullet 

when fired at range. Input field.

Appendix

11

Summary of Contents for FORETREX 601

Page 1: ...FORETREX 601 701BALLISTICEDITION Owner sManual...

Page 2: ...in the USA and other countries Garmin Connect Garmin Express QuickFit and tempe are trademarks of Garmin Ltd or its subsidiaries These trademarks may not be used without the express permission of Gar...

Page 3: ...r Settings 4 Resetting the Trip Computer 4 Applied Ballistics Settings 4 Customizing the Range Card Fields 5 Editing the Range Increment 5 Setting the Base Range 5 Changing the Target 5 Editing the Na...

Page 4: ......

Page 5: ...he device you will select the device language Acquiring Satellite Signals Before you can use GPS navigation features you must acquire satellite signals When you turn on your navigation device the GPS...

Page 6: ...Ballistics page select ENTER QUICK EDIT TIP You can select or to edit each value and select ENTER to move to the next field 2 Look directly into the wind to accurately set the DOF and wind direction...

Page 7: ...3 Select OPTIONS 4 Select an option To view the predicted best dates and times for hunting and fishing at your current location select HUNT FISH To view the sunrise sunset moonrise moonset and moon ph...

Page 8: ...select ENTER CALIBRATE COMPASS Calibrates the electronic compass Calibrating the Compass page 4 CHANGE FIELDS Allows you to customize the data fields on the compass page Customizing the Data Fields p...

Page 9: ...he AB folder on the device Transferring Files to Your Device page 8 1 From the Applied Ballistics page select ENTER PROFILE PROFILE PROFILE 2 Select an option To customize the bullet properties select...

Page 10: ...e 6 TRACKS Sets track preferences Tracks Settings page 6 ROUTES Allows you to select AUTO or DISTANCE for route leg transition MAP Sets map preferences Map Settings page 6 ALTIMETER Enables auto calib...

Page 11: ...Connect Mobile app instead of from the Bluetooth settings on your smartphone 1 Bring your compatible smartphone within 10 m 33 ft of your device 2 From the menu page on your device select PHONE PAIR P...

Page 12: ...e in My Computer on Windows computers and as a mounted volume on Mac computers Transferring Files to Your Device 1 Connect the device to your computer On Windows computers the device appears as a remo...

Page 13: ...E Cycling The number of revolutions of the crank arm Your device must be connected to a cadence accessory for this data to appear COURSE The direction from your starting location to a destination Cour...

Page 14: ...tion WINDAGE 1 The horizontal portion of the aiming solution based on the wind speed 1 and wind direction displayed in MIL milliradian or MOA minute of angle WINDAGE 2 The horizontal portion of the ai...

Page 15: ...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 fi...

Page 16: ...main menu 1 maps 1 2 settings 4 6 measuring distance 3 N navigation stopping 3 P pairing ANT sensors 7 smartphone 7 power key 1 R resetting device 9 resetting the device 9 routes 3 creating 3 deleting...

Page 17: ......

Page 18: ...support garmin com July 2017 190 02239 00_0A...

Reviews: