What makes the Leupold Mark 4HD 2.5-10x42 suitable for hunting in Australian conditions?

The Mark 4HD is built with Leupold's Professional-Grade Optical System for elite light transmission and glare reduction, crucial for harsh Australian sunlight. Its rugged, fully waterproof, fogproof, and shockproof construction ensures reliability in extreme bush and outback conditions, while the versatile 2.5-10x magnification suits various hunting scenarios.

How does the Second Focal Plane (SFP) reticle on this scope benefit me, especially for hunting?

The SFP design keeps the Illuminated TMR reticle size constant across the entire 2.5x to 10x magnification range. This ensures the reticle remains highly visible and clean at lower powers for quick target acquisition in dense cover, while still providing precise aiming points at higher magnifications without becoming overly thick.

What kind of mounting rings do I need for the Leupold Mark 4HD 2.5-10x42, and are there any recommended options?

This riflescope requires 30mm scope rings due to its maintube diameter. For compatible options, XHunter offers products like the Leupold QRW2 Quick Release Weaver Style Rings (LE174074) or the Leupold Backcountry Rings (LE175120), both designed for secure and reliable mounting.

How do the M5C3 ZeroLock® turrets work, and what are their advantages for precision shooting?

The M5C3 ZeroLock® turrets are designed to prevent accidental adjustments with their secure locking mechanism. They provide precise 0.1 MRAD click values and feature clear visual and tactile revolution indicators, allowing for confident, repeatable adjustments and an easy return-to-zero for consistent accuracy in the field.

What type of battery does the illuminated reticle use, and how is its life managed?

The illuminated TMR reticle is powered by a single CR2032 coin-cell battery, which is included with the scope. To maximize battery life, Leupold's Motion Sensor Technology (MST™) automatically deactivates the illumination after 5 minutes of inactivity, instantly reactivating it when motion is detected.

Tactical Riflescope - Leupold Mark 4HD LE183737

The Leupold Mark 4HD 2.5-10x42 M5C3 SFP Illum. TMR (Manufacturer Part Number: 183737) is a high-performance, mid-range riflescope designed to deliver professional-grade optical clarity in a lightweight form factor. Built around Leupold’s Professional-Grade Optical System, this optic provides elite light transmission, sharp resolution, and advanced glare reduction in harsh, direct sunlight. Featuring a 30mm maintube and a versatile 2.5x to 10x magnification range, it delivers reliable performance across diverse shooting environments, from dense bush to open country.

Key Features:

Motion Sensor Technology (MST™): Automatically deactivates the illuminated reticle after 5 minutes of inactivity to preserve the CR2032 battery, instantly reactivating when motion is detected.
M5C3 ZeroLock® Turrets: Prevents accidental turret movement while providing precise, tactile 0.1 MRAD adjustments and an easy return-to-zero with a 3-turn locking dial.
Second Focal Plane (SFP) Reticle: Keeps the Tactical Milling Reticle (TMR) size constant across the entire magnification range, ensuring high visibility even at lower power settings.
Rugged Construction: Fully waterproof, fogproof, and shockproof, designed to withstand extreme temperature swings and heavy recoil.
Removable Throw Lever: Includes a low-profile throw lever for rapid and precise magnification changes in the field.

Technical Specifications:

Magnification: 2.5x to 10x (4:1 zoom ratio)
Objective Lens Diameter: 42 mm
Maintube Diameter: 30 mm
Reticle Focal Plane: Second Focal Plane (SFP)
Reticle: Illuminated Tactical Milling Reticle (TMR)
Weight: 21.0 oz (approx. 595 grams)
Length: 12.5 inches (approx. 31.75 cm)
Field of View (at 100 yards): 44.8 ft at 2.5x to 11.0 ft at 10x
Eye Relief: 3.60" to 3.90" (91.4 mm to 99 mm)
Elevation Adjustment Type: M5C3 (0.1 MRAD click values, 3-turn locking dial with visual/tactile indicators)
Max Elevation & Windage Adjustment: 24.7 MIL
Parallax Adjustment: Side focus, adjustable down to 25 yards
Battery Type: CR2032 lithium coin-cell battery (included)
Mounting Compatibility: Standard 30mm scope rings

Who It Is For:

The Leupold Mark 4HD 2.5-10x42 is designed for mid-range tactical applications, precision target shooting, and hunting. The Second Focal Plane (SFP) configuration is highly valued by Australian hunters who require a clean, highly visible reticle at low magnification for close-range brush hunting, combined with the ability to dial precise shots up to 10x magnification at longer distances. Its lightweight 595-gram design makes it an excellent choice for mobile shooters walking long distances across difficult terrain, while the rugged construction ensures it handles the recoil of larger hunting and precision calibres.

SKU	LD38732LP
Model #	LE183737
Brand	Leupold
Shipping Weight	1.0000kg

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Leupold Mark 4hd Le183737 Riflescope 2.5-10x42 M5c3 Sfp Illum Tmr

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