Leupold BackCountry Cross-Slot Base – Weatherby Mark V/Vanguard LA 20 MOA

The Leupold BackCountry Cross-Slot one-piece base is designed for Weatherby Mark V and Vanguard long-action rifles. Machined from 7075-T6 aircraft-grade aluminum, it provides a lightweight, rugged foundation for scope mounting while offering a 20 MOA elevation to support extended-range scope zeroing. This base accepts both Picatinny- and Weaver-style rings and pairs with Leupold BackCountry Cross-Slot Rings or Mark 4 Aluminum rings.

Key Specifications

• The base is designed for Weatherby Mark V and Vanguard long-action rifles.
• Machined from 7075-T6 aircraft-grade aluminum for a balance of strength and light weight.
• Finished in Matte Black to reduce glare and provide a durable surface.
• Provides 20 MOA of built-in elevation to assist with long-range scope adjustments.
• Accepts Picatinny and Weaver-style rings for broad ring compatibility.
• Designed to work with BackCountry Cross-Slot Rings or Mark 4 Aluminum rings for complete mounting solutions.
• One-piece cross-slot design for simplified ring placement and improved strength.
• Listed dimensions are 0.65 x 2.40 x 9.20.
• Listed weight is 0.2.

Reliable and lightweight, this BackCountry base provides a practical mounting platform for precision optics on Weatherby long-action rifles. Its 20 MOA cant and cross-slot flexibility make it a sensible choice for shooters who need a rugged, low-profile solution without adding unnecessary weight to their setup.