Leupold QRW Cross-Slot Base Set Winchester 70 Express Matte Black

The Leupold QRW Cross-Slot Base Set delivers reliable optic mounting for Winchester Model 70 Express rifles with its precision-machined steel construction. This two-piece base system provides the solid foundation needed for consistent scope performance across all shooting conditions.

What Makes This Different

The QRW (Quick Release Weaver) design combines traditional cross-slot compatibility with Leupold's proven mounting geometry. Unlike generic bases that rely on basic machining tolerances, this system maintains strict alignment specifications within 0.002 inches. The matte black finish resists glare and corrosion better than standard blued surfaces, while the hardened steel construction handles recoil forces up to .375 H&H Magnum without shifting.

Key Features

• Precision-machined steel construction rated for magnum calibers
• Cross-slot design accepts standard Weaver and Picatinny rings
• Two-piece base system optimizes scope eye relief positioning
• Matte black finish eliminates glare and resists corrosion
• Machined to 0.002-inch tolerance for consistent scope alignment
• Compatible with Winchester Model 70 Express action spacing
• Pre-drilled and tapped holes match factory receiver dimensions

Field performance remains consistent whether mounted on dangerous game rifles in Alaska or precision hunting setups in the lower 48. The steel base handles thermal expansion differently than aluminum alternatives, maintaining zero through temperature swings from -20°F to 120°F. Professional guides and serious hunters rely on this mounting system because scope shift means missed opportunities or worse.

Technical Specs

• Material: Hardened steel construction
• Finish: Matte black oxide coating
• Compatibility: Winchester Model 70 Express actions
• Base spacing: Standard Winchester 70 receiver dimensions
• Ring compatibility: Weaver and Picatinny cross-slot rings
• Recoil rating: Suitable for magnum calibers through .375 H&H
• Manufacturing: CNC machined in the United States
• Warranty: Leupold lifetime service policy

This base set represents decades of Leupold engineering focused on one goal: keeping scopes exactly where shooters mount them. The combination of proven materials, precise manufacturing, and field-tested design makes scope mounting decisions straightforward for Winchester 70 Express owners.