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BX-4 Range HD TBR/W 10x42mm
 
When speed is paramount, there’s no substitute for a range-finding binocular. The BX-4 Range HD TBR®/W 10x42mm fuses our DNA® engine and ballistics software with the optical performance diehard hunters and shooters demand.
 
TRUE ACCURACY MATTERS
 
BE MORE EXACT WITH TRUE BALLISTIC RANGE/WIND TECHNOLOGY
Leupold’s True Ballistic Range/Wind (TBR/W) technology takes precision to the next level by offering 25 selectable ballistics groups that account for your preferred cartridge, helping you dial in the exact range of your target.
Using the old rifleman's rule on an angled 600-yard shot could result in a 10-15-inch margin of error when compared to the dead-on accuracy of Leupold’s TBR/W. And with TBR/W’s 10-mph wind holds, you’ll have all the information you need to experience more first-shot hits.
 
EXTREME CLIMATE
EXPOSURE
We make sure our optics perform at the highest level in the harshest conditions by ensuring they will survive from -40 degrees Fahrenheit all the way up to 160 degrees Fahrenheit.
 
WATERPROOF +
FOGPROOF
From torrential downpours to crossing rivers, you’ll never have to worry about a Leupold binocular leaking or fogging up. Our proprietary gas blend and seals are tested to a 33-foot depth and a multitude of pressure changes.
 
OPTICS GUARANTEED
FOR LIFE
Built for a lifetime of performance - if at any time your optics don't perform, we will repair or replace them for free - whether you're the original owner or not.
 
DESCRIPTION
 
When speed is paramount, there’s no substitute for a range-finding binocular. The BX-4 Range HD TBR®/W 10x42mm fuses our DNA® engine and ballistics software with the optical performance diehard hunters and shooters demand. Now you can spot and range targets without wasting valuable seconds switching between gear. Its high-contrast red OLED display delivers visible readouts in any light, and its edge-to-edge clarity makes glassing sessions easy on the eyes. The next time you’re packing for a match or hunt, cut the excess. Take the BX-4 Range HD TBR/W.
This time-saving combo of tech and glass is built around our Elite Optical System. It delivers excellent dawn-to-dusk light transmission for a bright image when it matters most, elite-level glare reduction in harsh light, and the resolution and clarity you can count on in the backcountry. Compare it to other range-finding binoculars in its class, and you’ll see a difference, especially in low light.
But that’s just half of what this optic is all about. Its 10x magnification provides a large field of view for glassing in tight areas while still being powerful enough to make positive IDs from a distance. And when you finally spot your target, one press of the power button will tell you exactly how far to send your rounds. Backed by our Lifetime Optics Guarantee and our Two-Year Electronics Guarantee, the BX-4 Range HD is built for years of performance.
 
SPECIFICATIONS
 
Badge
New
Tripod Compatible (1/4-20)
Yes
Rifle Angle Compensation
TBR/W
Archery Angle Compensation
Bow Mode
Battery Type
CR2
True Ballistic Range - Wind (TBR-W)
Yes
Horizontal Distance (Trig)
No
Archer's Advantage
No
Display Type
OLED
Flightpath
No
Guard-ion Lens Coating
Yes
Last Target Mode
No
Trophy Scale
No
Length (in)
5.9
Weight (oz)
39
Magnification
10
Objective Lens Diameter (mm)
42
Linear FOV (ft@1000 yd)
334
Angular FOV (Degrees)
6.2
Eye Relief (mm)
17
Min Diopter (dpt)
-3.5
Max Diopter (dpt)
3.5
Close Focus Distance (ft)
13
Interpupillary Distance Max (mm)
76
Interpupillary Distance Min (mm)
56
Light Transmission Left Channel (%)
81
Light Transmission Right Channel (%)
80
Accuracy to 125 (yd)
1
Accuracy to 1000 (yd)
1
Accuracy above 1000 (yd) %
.2
Battery Life (Actuations)
3000
Max Range - Deer (yd)
1100
Max Range - Trees (yd)
1600
Max Range - Reflective (yd)
2600
Min Range (yd)
12
Laser Classification
Class 1M