I put a write up in another thread here you go:
Biased opinion since we're the UK distributor for Vortex Optics but here's some info that may be useful.
Crossfire HD 1400 - 1400 Yard unit.
Useful bits:
MAGNIFICATION 5x
OBJECTIVE LENS 21mm
MAX REFLECTIVE RANGE Up to 1400 yds.
TREE RANGE Up to 950 yds.
DEER RANGE Up to 750 yds.
MINIMUM RANGE 5 yds. (4.5m)
ACCURACY
± 1 yd @ ≤ 100 yds.
± 2 yds. @ ≥ 100 yds. & ≤ 1000 yds.
± 3 yds. @ ≥ 1000 yds.
MAXIMUM ANGLE READING ± 89°
FIELD OF VIEW Linear @ 1000 yds. 367'
Angular 7 ̊
EYE RELIEF 16mm
BATTERY TYPE CR2
LENGTH 4.0" (101.6mm)
HEIGHT 2.9" (73.5mm)
WIDTH 1.3" (33mm)
WEIGHT W/ BATTERY 4.8 oz (136g)
Scan Mode: Yes
Normal Mode: Yes
First Mode: Yes
Last Mode: Yes
Extended Laser Range (ELR) Mode: No
HCD Mode: Yes
LOS Mode: Yes
Diamondback HD 2000 - 2000 yard unit
Useful bits:
MAGNIFICATION 7x
OBJECTIVE LENS 24mm
MAX REFLECTIVE RANGE Up to 2000 yds. (1829m)
TREE RANGE Up to 1800 yds. (1646m)
DEER RANGE Up to 1400 yds. (1189m)
MINIMUM RANGE 5 yds. (4.5m)
ACCURACY
± 1 yd. @ ≤ 100 yds.
± 2 yds. @ ≥ 100 yds. & ≤ 500 yds.
± 3 yds. @ ≥ 500 yds.
MAXIMUM ANGLE READING ± 60°
FIELD OF VIEW Linear @ 1000 yds. 335'
Angular 6.4°
EYE RELIEF 16mm
BATTERY TYPE CR2
BATTERY LIFE 2000 + Range Cycles at Brightness Level 3
LENGTH 4.1" (103.4mm)
HEIGHT 3.1" (79.5mm)
WIDTH 1.8" (45mm)
WEIGHT W/ BATTERY 7.6 oz. (215.5g)
Scan Mode: Yes
Normal Mode: Yes
First Mode: No
Last Mode: Yes
Extended Laser Range (ELR) Mode: No
HCD Mode: Yes
LOS Mode: Yes
Viper HD 3000 - 3000 yard unit
MAGNIFICATION 7x
OBJECTIVE LENS 25mm
MAX REFLECTIVE RANGE Up to 3000 yds. (2743m)
TREE RANGE Up to 2300 yds. (2103m)
DEER RANGE Up to 2000 yds. (1829m)
MINIMUM RANGE 6 yds. (5m)
ACCURACY
± 1 yd @ ≤ 100 yds.
± 2 yds. @ ≥ 100 yds. & ≤ 1000 yds.
± 3 yds. @ ≥ 1000 yds.
MAXIMUM ANGLE READING ± 89°
FIELD OF VIEW Linear @ 1000 yds. 314'
Angular 6°
EYE RELIEF 15.5mm
BATTERY TYPE CR123
BATTERY LIFE 4000 + Range Cycles at Brightness Level 4
LENGTH 4.2" (107.2mm)
HEIGHT 3.1" (79mm)
WIDTH 1.7" (42mm)
WEIGHT W/ BATTERY 9.1 oz. (258g)
Scan Mode: Yes
Normal Mode: Yes
First Mode: No
Last Mode: Yes
Extended Laser Range (ELR) Mode: Yes
HCD Mode: Yes
LOS Mode: Yes
Razor HD 4000 - 4000 yard unit
Normal Mode:
MAX REFLECTIVE RANGE Up to 2400 yds.
TREE RANGE Up to 1800 yds.
DEER RANGE Up to 1600 yds
ELR Mode:
MAX REFLECTIVE RANGE Up to 4000 yds.
TREE RANGE Up to 2500 yds.
DEER RANGE Up to 2200 yds
Minimum Range: 5 yd. (4 m)
Accuracy: ± 0.5 yards at 5-199.9 yards
± 1 yards at 200-1,000 yards
± 2 yards at over 1,000 yards
Maximum Angle Reading: ± 70 degrees
Measuring Time: < .25 seconds (Normal Mode)
Battery Life: > 4,000 range cycles *Cold weather may reduce battery performance
Operating Temperature: -4° to 140° F (-20° to 60° C)
Storage Temperature: -13° to 140° F (-25° to 60° C)
Magnification: 7x
Objective Lens: 25 mm
Eye Relief: 16-19 mm
Diopter: ± 2
Brightness Settings: 5
Battery: CR2
Weight: 9.9 oz.
Length: 114mm
Width: 34mm
All covered by the VIP Warranty which includes accidental damage and the electronics, forever, no need to register.
Glossary of Modes
Scan Mode:
Activate Scan Ranging by pressing and holding the “Measure” button. Keeping the button depressed will continuously measure distance as you pan back and forth across target objects. The reticle will blink as you pan. Releasing the “Measure” button will return laser to the Power Up condition
Normal Mode
Your Crossfire™ HD 1400 comes preset to Normal target mode. This is the standard mode providing the range of the target with the strongest range result. Normal Mode is the recommended target mode for most situations.
First Mode
This mode displays the closest distance when ranging. This mode is ideal for ranging a smaller target in front of other larger or more reflective objects.
Last Mode
This mode displays the farthest distance when ranging. This mode is ideal for ranging a specific target behind a group of objects like brush, trees, rocks, etc.
Extended Laser Range (ELR) Mode
The ELR Mode target mode allows for ranging smaller, less reflective targets at extended distances. It is ideal for ranging when Normal Mode is unable to obtain a desired range. A longer response time may be required to build the desired range. For best results, use a tripod.
HCD Mode
The HCD range display is intended to be the primary mode—used for most rifle and archery shooting applications. The yardage number displayed is the critical horizontal component distance.
Using the HCD Mode
• Use the HCD range mode in the following situations:
• Rifle shooting on level ground at any range.
• Rifle shooting out to ranges of 800 yards with mild slopes (less than 15 degrees).
• Rifle shooting out to ranges of 400 yards with moderate slopes (15 to 30 degrees).
• For all archery shooting. The displayed HCD yardage number is corrected for shot angle and needs no extra user input; shooters simply use the appropriate level ground bullet drop and wind adjustment for the range displayed and shoot. Archers use the appropriate level ground sight pin for the range displayed and shoot.
LOS Mode
The LOS (Line of Sight) mode is intended for rifle shooters who are using slope correcting ballistic drop data cards, ballistic cell phone applications, or other devices with ballistic programs and who are shooting at distances beyond 500 yards and with slopes greater than 15 degrees. The range number displayed in LOS mode is the actual line of sight range with no ballistic correction for slope.
Most of the commonly used ballistic devices can provide independent slope correction for bullet drop data and require actual line of sight range input. Using the LOS range when calculating bullet wind drifts under these steep slope/long range conditions will provide a higher degree of accuracy than using the HCD range.
To use, simply input the LOS range number into the electronic device or use the LOS range when referencing ballistic drop cards with slope correction. LOS Mode - Incline When in LOS mode, an additional number is displayed above the yardage number. This number is slope incline shown in degrees. The slope incline number can be entered into ballistic programs or field cards to help calculate precise bullet drops in mountainous terrain.