What are the specific torque recommendations for installing the Leupold Mark IMS 35mm 20 MOA mount on my rifle?

To ensure a secure and stable setup on your MIL-spec 1913 Picatinny rail, Leupold recommends tightening the keeper clamps to 65 in-lbs and the ring top screws to 28 in-lbs. This prevents shifting under heavy recoil in harsh Australian hunting environments.

Will this bolt-action specific mount interfere with my rifle's bolt handle?

No, the Leupold Mark IMS bolt-action variant features a specialized forward-cantilever configuration and optimized ring spacing to provide ample clearance for bolt throws. This ensures smooth, unobstructed cycling of your bolt-action rifle without structural interference.

Are there any Australian electrical or safety compliance certifications required for this mount?

No, because the Leupold Mark IMS 35mm mount is a purely mechanical optical accessory containing no electronic components, regulations regarding standard Australian plugs, 240V power grids, and SAA/RCM safety certifications do not apply.

Why does this mount feature a built-in 20 MOA inclination, and how does it help with long-range shooting?

The integrated 20 MOA cant provides an additional 20 Minutes of Angle of elevation slope, which is purpose-built for extreme long-range shooting. It allows you to maximize the elevation travel on 35mm long-range scopes—such as the Leupold Mark 5HD—without bottoming out your reticle at extended distances.

35mm Scope Mount - Leupold LE176889

The Leupold Mark IMS 35mm Bolt-Action 20 MOA (MPN: 176889) is a premium, monolithic, one-piece cantilever scope mount engineered to integrate the base and rings into a single, high-strength unit. Designed specifically for securing 35mm maintube riflescopes, this mount eliminates the alignment issues and potential failure points of traditional two-piece ring systems. Machined from a single block of aircraft-grade aluminum and finished with a durable matte black anodisation, it provides a highly rigid platform that stands up to severe recoil and harsh environments. By mounting directly to MIL-spec 1913/Picatinny rails, this unit ensures your precision optics remain perfectly secure and zeroed under demanding conditions.

Key Features:

Integrated 20 MOA Cant: Provides 20 Minutes of Angle of built-in elevation slope, allowing long-range shooters to utilise more of their scope's elevation travel without bottoming out the reticle.
Bolt-Action Specific Geometry: Features specialized ring spacing and a 0.38-inch rear offset to ensure plenty of clearance for bolt throws and reliable action cycling.
Monolithic Aluminum Strength: Crafted from a single block of high-grade aluminum bar stock to minimise potential points of failure and maximise structural integrity.
Optimised Ergonomics: The 1.50-inch mounting height places the scope at an ideal level for a comfortable, repeatable cheek weld and rapid target acquisition.
High-Torque Performance: Engineered to withstand heavy recoil when installed to recommended torque specifications, preventing optic movement on high-calibre rifles.

Technical Specifications:

Manufacturer Part Number (MPN): 176889
Ring Diameter: 35 mm
Base Cant / Inclination: 20 MOA
Overall Length: 5.74 inches (approximately 145.8 mm)
Length Within Rings: 3.68 inches
Mount Height: 1.50 inches (from top of rail to the center of the ring)
Weight: 7.10 ounces (approximately 201 grams)
Ring Width: 1.98 inches
Ring Depth: 0.65 inches
Rear Offset: 0.38 inches
Mount Type: MIL-spec 1913 / Picatinny rail
Recommended Torque Specs: Keeper Clamp: 65 in-lbs / Ring Top Screws: 28 in-lbs

Who It Is For:

The Leupold Mark IMS 35mm 20 MOA mount is built for Australian precision rifle series (PRS) competitors, long-range target shooters, and large-game hunters who demand absolute reliability from their setups. It is ideal for those mounting large-maintube optics, such as the Leupold Mark 5HD 5-25x56, onto heavy-recoiling bolt-action rifles like the Tikka T3x or Sako S20 on Picatinny bases. If you are shooting at extended distances in the harsh Australian outback, this robust mount ensures your heavy-calibre setup maintains zero, target after target.

SKU	LD38665LP
Model #	LE176889
Brand	Leupold
Shipping Weight	1.0000kg

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Leupold Le176889 Mark Ims Scope Mount 35mm 20 Moa

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