Description
Discover the superior optical performance of the Leupold BX-4 Pro Guide HD 10x32mm Binoculars, a premium choice for the discerning rifle scope shopper looking for uncompromising quality in a compact package. These binoculars offer extra magnification to bring distant targets into clear focus without weighing you down, ideal for the meticulous hunter or shooter who values both precision and portability.
Engineered with Leupold's Elite Optical System, the BX-4 Pro Guide HD models provide exceptional light transmission from dawn to dusk, elite glare reduction, and the high resolution and clarity crucial for those who demand the very best from their equipment. The comfortable, ergonomic open-bridge design allows for prolonged observation without discomfort and contributes to significant weight savings during extended treks in the wilderness.
Included with the BX-4 Pro Guide HD binoculars are the essential Leupold Pro Gear accessories: a GO Afield shoulder strap, binocular case, protective lens covers, and a lens cloth. As with all Leupold optics, these binoculars come fog proof, waterproof, and with a lifetime guarantee, ensuring reliability and performance in even the most challenging environments.
Features
- ADVANCED OPTICS: Elite Optical System for outstanding dawn-to-dusk light transmission, clarity, and glare reduction.
- INCREASED MAGNIFICATION: 10x magnification brings subjects closer for easy identification and detail.
- PREMIUM BUILD: Lightweight and rugged aluminum housing for durability without the extra weight.
- HIGH-DEFINITION LENSES: Calcium-fluoride HD lens elements for unmatched image clarity across all magnifying levels.
- ERGONOMIC DESIGN: Open-bridge configuration for comfortable handling during extended periods of use.
- WEATHER-READY: Complete fog proof and waterproof integrity for reliable performance in all conditions.
- PRO GEAR ACCESSORIES: Includes shoulder strap, case, and lens covers for full gear protection.
- LIFETIME GUARANTEE: The Leupold lifetime guarantee ensures dependable performance year after year.
Specifications
| Feature | Specification |
|---|---|
| Binocular Weight | 17 oz |
| Binocular Magnification | 10x |
| Objective Lens Diameter | 32mm |
| Binocular Eye Relief | 16 mm |
| Exit Pupil | 3.2 mm |
| Field of View | 394 feet @ 1000 yards |
| Dimensions (Length) | 4.8 inches |
| Angular Field of View | 7.5 degrees |
| Finish | Shadow Gray |
| Close Focus Range | 6 feet |
| Interpupillary Distance | 58 - 74 mm |
| UPC | 030317015084 |
| MPN | 172660 |
Included In The Box
- GO Afield shoulder strap
- Binocular case
- Lens covers
- Lens cloth
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Optics Knowledge Center
Understanding Rifle Scope Basics
Magnification
Magnification refers to how much larger an object appears through the scope compared to the naked eye. Fixed power scopes have one magnification setting, while variable power scopes offer a range (e.g., 3-9x).
Objective Lens
The objective lens is the front lens that gathers light. Larger objective lenses (measured in mm) gather more light, providing brighter images in low-light conditions but add weight and require higher mounting.
Reticle
The reticle (crosshair) is the aiming point inside the scope. Modern scopes offer various reticle designs, from simple duplex crosshairs to complex ballistic reticles with holdover points for different distances.
Adjustments
Rifle scopes have turrets for windage (horizontal) and elevation (vertical) adjustments. These are measured in MOA (minutes of angle) or MRAD (milliradians) and allow precise aiming adjustments.
Proper Scope Mounting Guide
Select the Right Rings & Base
Choose rings that match your scope's tube diameter (typically 1", 30mm, or 34mm). Select a base compatible with your rifle's receiver. For heavy-recoiling rifles, opt for stronger mounts.
Install the Base
Clean the receiver and base thoroughly. Apply a small amount of blue Loctite to the screws. Attach the base to the receiver and torque the screws to manufacturer specifications.
Attach the Rings
Attach the bottom halves of the rings to the base. Place the scope in the rings and loosely attach the top halves. Don't fully tighten yet.
Set Eye Relief & Level
Position the scope for proper eye relief (3-4 inches) in your normal shooting position. Ensure the reticle is level using a scope leveling tool. Once positioned correctly, tighten the rings evenly in a cross-pattern.
Scope Zeroing Tips
Start Close
Begin zeroing at a shorter distance (25-50 yards) to ensure you're on paper before moving to your desired zero distance (typically 100 yards).
Use a Stable Rest
Always zero your rifle from a stable shooting position using a bench rest, sandbags, or a shooting rest to eliminate as much human error as possible.
Fire Groups
Fire 3-shot groups before making adjustments. This provides a more accurate representation of where your rifle is shooting than single shots.
Make Deliberate Adjustments
Know your scope's adjustment values (typically 1/4 MOA per click). If your group is 2 inches low at 100 yards, you'll need to adjust up 8 clicks (for a 1/4 MOA scope).
Confirm Your Zero
After making adjustments, fire another group to confirm your zero. Repeat the process until your point of impact matches your point of aim.
Document Your Settings
Once zeroed, record your settings including distance, ammunition used, and environmental conditions for future reference.
Optics Maintenance & Care
Cleaning Lenses
- Start by blowing or brushing away loose particles
- Use a lens pen or microfiber cloth for fingerprints
- For stubborn dirt, use lens cleaning solution (never household cleaners)
- Clean with gentle circular motions from center outward
Protecting Your Optics
- Always use lens caps when not in use
- Store in a dry place with silica gel packets
- Avoid extreme temperature changes
- Use a quality scope cover in harsh conditions
Regular Maintenance
- Check and tighten mount screws periodically
- Inspect O-rings and seals for damage
- Verify zero after rough handling
- Clean the exterior with a damp cloth
What to Avoid
- Never use fingers to touch lenses
- Avoid paper products (tissues, paper towels) on lenses
- Don't use acetone, alcohol, or household cleaners
- Never disassemble your scope (voids warranty)
