Does the Leupold Mark 4HD 2.5-10x42 have a First Focal Plane (FFP) reticle, and how does the MOA adjustment system work?

Yes, this model features a PR1-MOA reticle in the First Focal Plane (FFP), meaning its subtensions remain accurate across all magnification levels for precise holdovers and range estimation. The exposed M1C3 ZeroLock elevation turret offers 1/4 MOA click adjustments with 25 MOA per revolution, providing a total of 71.5 MOA of elevation adjustment. The windage turret is capped and offers 85 MOA of total adjustment.

What are the ideal use cases for the Leupold Mark 4HD 2.5-10x42, particularly for Australian hunters or tactical shooters?

The 2.5-10x magnification range makes this scope highly versatile for quick target acquisition at close-to-medium ranges, while still offering sufficient magnification and elevation for long-range precision shooting. Its rugged, waterproof, and fogproof construction is well-suited for the demanding conditions of Australian bush and outback environments, making it ideal for both hunters and tactical users.

What type of mounting rings are compatible with the Leupold Mark 4HD 2.5-10x42 riflescope?

This riflescope features a 30mm maintube, so you will need 30mm mounting rings. We recommend Leupold's own rings for optimal fit and performance, such as the Leupold QRW2 Quick Release Weaver Style Rings 30mm Tube or the Leupold Backcountry Rings 30mm Medium Matte - Aluminum, both designed for secure attachment.

Does the Leupold Mark 4HD 2.5-10x42 require batteries or have any specific electrical requirements for use in Australia?

No, this specific Leupold Mark 4HD 2.5-10x42 model (MPN: 183741) is non-illuminated and purely mechanical/optical. It does not require any batteries or external power, meaning there are no electrical components, 240V charging, or specific SAA/RCM certifications applicable to its operation.

Does this Leupold Mark 4HD model feature adjustable parallax?

No, this particular Leupold Mark 4HD 2.5-10x42 model (MPN: 183741) features a fixed parallax setting. The parallax is factory-set at 150 yards, providing a clear sight picture without adjustment for most common shooting distances within its magnification range.

Riflescope - Leupold Mark 4HD 2.5-10x42 LE183741

The Leupold Mark 4HD 2.5-10x42 M1C3 FFP PR1-MOA Riflescope (MPN: 183741, Model: LE183741) delivers professional-grade optical performance in a lightweight, streamlined 30mm maintube. Featuring a versatile 4:1 zoom ratio, this optic provides a magnification range from 2.5x to 10x, making it highly adaptable for rapid target acquisition at close-to-medium ranges and precise shot placement at longer distances. Engineered with an advanced optical system, it offers excellent light transmission, high resolution, and effective glare reduction to maintain image clarity under harsh, direct sunlight. As a purely mechanical and optical instrument, this non-illuminated model requires no batteries, meaning Australian regulatory compliance markings such as SAA or RCM certifications are not applicable.

Key Features:

First Focal Plane (FFP) PR1-MOA Reticle: The reticle subtensions remain accurate across the entire magnification range, allowing for precise holdovers, windage corrections, and range estimation at any power setting.
M1C3 ZeroLock Turrets: The tactile, exposed elevation dial provides three turns of travel with 1/4 MOA click values and a secure locking button to prevent accidental adjustments in the field.
Capped Windage Turret: Keeps windage adjustments secure and protected from accidental movement when moving through dense vegetation.
Rugged Reliability: Fully waterproof, fogproof, and shockproof, this scope is built to withstand heavy recoil and extreme environmental conditions.
Fixed Parallax: Factory set at 150 yards, simplifying operation and allowing the shooter to focus on target acquisition without manual parallax adjustments.

Technical Specifications:

Magnification Range: 2.5x to 10x
Objective Lens Diameter: 42 mm
Maintube Diameter: 30 mm
Reticle: PR1-MOA (First Focal Plane)
Weight: 21.5 ounces (approximately 610 grams)
Total Length: 12.5 inches (approximately 31.75 cm)
Eye Relief: 3.6 inches to 3.9 inches
Field of View (at 100 yards): 42.2 feet at 2.5x to 11.0 feet at 10x
Elevation Adjustment: Exposed M1C3 turret, 1/4 MOA click value, 25 MOA per revolution, 71.5 MOA elevation adjustment range (85 MOA total travel)
Windage Adjustment: Capped turret, 24 MOA per revolution, 85 MOA total travel range
Parallax: Fixed at 150 yards
Illumination: Non-illuminated

Who It Is For:

The Leupold Mark 4HD 2.5-10x42 is designed for tactical shooters, precision rifle competitors, and hunters who require a highly reliable, medium-range optic without the added bulk of larger target scopes. Its compact 12.5-inch length and 610-gram weight make it an excellent match for walk-up hunting rifles, lightweight precision setups, and utility rifles used across diverse Australian terrains—from dense scrub to open country. The combination of a first focal plane PR1-MOA reticle and tactile M1C3 turrets provides the exactness needed for rapid adjustments, making it a preferred choice for those who value mechanical simplicity, durability, and optical clarity in demanding field conditions.

SKU	LD38735LP
Model #	LE183741
Brand	Leupold
Shipping Weight	1.0000kg

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Leupold Mark 4hd 2.5-10x42 M1c3 Ffp Pr1-Moa Le183741 Riflescope 30mm Tube Zerolock Turrets

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