Leupold BackCountry Cross-Slot Base Winchester 70 Matte Black

The Leupold BackCountry Cross-Slot Base transforms Winchester Model 70 rifles into precision platforms capable of accepting modern optics mounting systems. This machined aluminum base replaces factory iron sights with a rigid foundation that maintains zero through heavy recoil and extreme conditions. Built specifically for Winchester 70 actions, it provides the rock-solid mounting platform serious shooters demand.

What Makes This Different

Unlike generic bases that rely on simple dovetail connections, the BackCountry Cross-Slot system features precision-machined cross-slots that lock rings in place both fore and aft. This dual-axis security prevents scope creep under magnum recoil while allowing precise windage adjustments. The low-profile design maintains proper scope height while clearing bolt handles and ejection ports on Winchester 70 actions.

Key Features

• Precision-machined 6061-T6 aluminum construction for maximum strength-to-weight ratio
• Cross-slot design prevents scope movement under heavy recoil conditions
• Matte black hard anodized finish resists corrosion and eliminates glare
• Winchester Model 70 specific fit ensures proper receiver contact and alignment
• Low-profile design maintains optimal scope mounting height
• Compatible with Leupold Cross-Slot rings and select third-party ring systems
• Machined relief cuts reduce overall weight without compromising strength

Field testing demonstrates this base maintains zero consistency through temperature extremes and sustained firing sessions. The cross-slot system proves particularly effective with high-magnification scopes on magnum calibers where traditional bases often fail. Hunters appreciate the corrosion-resistant finish during extended backcountry hunts, while competitive shooters rely on the repeatable zero return when switching between different scopes.

Technical Specs

• Material: 6061-T6 aluminum alloy construction
• Finish: Matte black hard anodized Type III
• Compatibility: Winchester Model 70 actions only
• Ring System: Leupold Cross-Slot rings required
• Weight: Approximately 2.8 ounces
• Length: 5.5 inches overall
• Height: 0.385 inches above receiver
• Country of Origin: United States

This base represents the logical upgrade for Winchester 70 owners seeking maximum optical performance from their rifles. The engineering eliminates common mounting problems while the American manufacturing ensures consistent quality. Professional gunsmiths stock this base specifically because it solves scope mounting issues that plague other systems.