The Leupold BackCountry one-piece cross-slot base for Winchester 70 short-action rifles with a 20-MOA slope (part no. 171341) extends elevation adjustment for longer-range shots on that classic action. Leupold machines the base from 7075-T6 aircraft-grade aluminum to keep mass low while preserving strength for repeated use, and the cross-slot interface accepts both Picatinny and Weaver-style rings. The black matte finish reduces glare and adds corrosion-resistant protection. Among 20-MOA scope bases for the Winchester 70 short action, this BackCountry configuration is built for extended-range hunting.

Key Specifications

• This base provides a 20-MOA slope, extending elevation adjustment for longer-range shots.
• The body is machined from 7075-T6 aircraft-grade aluminum, keeping mass low while preserving strength.
• The finish is black matte, offering reduced glare and a field-ready appearance.
• The mount is a to-receiver style one-piece base, delivering a stable foundation for scope alignment.
• The design accepts Picatinny and Weaver-style rings, providing flexibility with common ring systems.
• The construction is one-piece, which improves concentric alignment between the scope and receiver.
• The interface is a cross-slot configuration, accommodating cross-slot ring options for a lightweight mounting setup.

Frequently Asked Questions

Does this fit the Winchester 70 long action? No, this base is machined specifically for the short-action Winchester 70 footprint.

What ring types work with this base? Both Picatinny- and Weaver-style rings via the cross-slot interface, sold separately.

Buy the Leupold BackCountry Base, Winchester 70 SA

A classic Winchester action deserves the reach of a modern 20-MOA base without the weight penalty of steel, and this aluminum mount delivers exactly that. Order it from our Lubbock, Texas gun shop — availability updates are handled at checkout.