Leupold BX-4 Range HD TBR/W 10x42 Gen 2 Rangefinder Binoculars - Shadow Grey

BX-4 Range HD Gen 2 TBR/W 10x42MM

Craftsmanship & Construction

This binocular is engineered for serious field use, with a slim, ergonomic design intended to sit securely in the hand. Its construction includes a built-in 1/4-20 rotatable tripod adapter port for stable mounting when glassing over longer periods, while the easy-grip standoffs help users locate controls even in demanding conditions.

Optically, it is built around Leupold’s Elite Optical System, designed to deliver strong dawn-to-dusk light transmission, glare reduction in harsh light, and the level of resolution and clarity expected by experienced hunters and shooters.

Fit & Comfort

The BX-4 Range HD Gen 2 TBR/W 10x42MM is designed with comfort in mind for extended glassing sessions. Three interchangeable Form-Fit eyecup options allow users to tailor the viewing experience, whether they want improved stray-light control, all-around comfort, or a lower profile for use with glasses.

Its smooth focusing system supports fine adjustments, while the ergonomic shape is intended to feel comfortable across different hand sizes.

Waterproof Performance

This model is waterproof and fogproof, making it suitable for use in adverse weather and changing terrain. Advanced internal gasses and sealing methods are used to keep the internals moisture free and clear, even when exposed to extreme temperatures and elevation changes.

Key Features

• 10x magnification with 42mm objective lenses
• Maximum range of 3,658 metres on reflective targets
• Maximum range of 1,829 metres on trees and 1,189 metres on deer-sized targets
• Elite Optical System for bright low-light performance and glare reduction
• High-contrast red OLED display for crisp readouts in varied light conditions
• TBR/W technology for ballistically calculated ranges at steep angles and longer distances
• Bow Mode with TRIG function for archery use
• Archer’s Advantage mode for setup-specific archery calculations
• Last Target mode to prioritise the most distant target in rain, snow, or fog
• Built-in 1/4-20 rotatable tripod adapter port

Materials & Care

The exact housing materials are not provided, but the binocular is built around a weather-sealed, fogproof design intended for harsh outdoor use.

Specific care instructions are not provided.

Size & Fit Guidance

This model measures approximately 150mm in length and weighs around 1,050g, giving it a substantial but field-ready format for handheld use or tripod mounting.

• Eye relief: 17mm
• Close focus distance: approximately 4 metres
• Interpupillary distance: 56mm to 76mm
• Tripod compatible via 1/4-20 adapter port

BX-4 Range HD Gen 2 TBR/W 10x42MM Specifications

• Magnification: 10x
• Objective lens diameter: 42mm
• Field of view: approximately 111 metres at 1,000 metres
• Angular field of view: 6.2 degrees
• Eye relief: 17mm
• Exit pupil: 4.2mm
• Close focus distance: 4 metres
• Length: 150mm
• Weight: 1,050g
• Display type: OLED
• Display colour: red OLED display
• Battery type: CR2
• Battery life: 3,000 actuations
• Rifle angle compensation: TBR/W
• Archery angle compensation: Bow Mode
• Minimum range: 11 metres
• Maximum range on reflective targets: 3,658 metres
• Maximum range on trees: 1,829 metres
• Maximum range on deer-sized targets: 1,189 metres
• Accuracy to 114 metres: 0.7 metres
• Accuracy to 914 metres: 1 metre
• Accuracy above 914 metres: 0.2%
• Laser classification: Class 1M

BX-4 Range HD Gen 2 TBR/W 10x42MM Review

The BX-4 Range HD Gen 2 TBR/W 10x42MM is a high-performance rangefinding binocular designed for hunters and shooters who need optical clarity and precise distance data in one package. Its combination of HD viewing, ballistic ranging features, and long-distance capability makes it a serious field tool.

With extended ranging capability, a red OLED display, and support for both rifle and archery angle compensation, it is aimed squarely at demanding outdoor use.

BX-4 Range HD Gen 2 TBR/W 10x42MM Performance & Key Features

Performance is centred on a strong blend of optical quality and ranging intelligence.

• Extended ranging capability up to 3,658 metres
• TBR/W ballistic support for rifle shooting
• Bow Mode and Archer’s Advantage for archery use
• Red OLED display for clear readouts
• Last Target mode for difficult weather conditions

Build Quality & Handling

The build is clearly focused on hard field use, with waterproof and fogproof sealing designed to cope with temperature swings and wet conditions. At around 1,050g, it offers a stable feel while remaining suitable for tripod mounting.

Is the BX-4 Range HD Gen 2 TBR/W 10x42MM Easy to Use?

Yes, it is designed to be straightforward in the field, with smooth focusing and a clear OLED display.

• Programmable controls
• Smooth focus adjustment
• Glove-friendly operation
• Tripod compatibility

Key Takeaways of the BX-4 Range HD Gen 2 TBR/W 10x42MM

This model combines HD optical performance with advanced ranging functionality in a single unit. Its long-range capability, ballistic support, and adaptable viewing system make it well suited to serious hunting applications. The weight may encourage tripod use for extended sessions, but overall it remains a capable and well-balanced choice for demanding field use.

BX-4 Range HD Gen 2 TBR/W 10x42MM FAQs

How far can it range?

It can range reflective targets up to 3,658 metres, trees up to 1,829 metres, and deer-sized targets up to 1,189 metres.

Is it suitable for archery?

Yes, it includes Bow Mode and Archer’s Advantage for archery-specific calculations and angle compensation.

Is it waterproof?

Yes, it is fully waterproof and fogproof for reliable performance in harsh conditions.

Can it be tripod mounted?

Yes, it includes a built-in 1/4-20 tripod adapter port for stable mounting.

What battery does it use?

It uses a CR2 battery with an estimated life of 3,000 actuations.