Leupold Two-Piece Mounting Base Winchester 70 Express

The Leupold Quick Release Two-Piece Mounting Base (Matte Finish) is a precision-designed scope base built for use on Pre-1964 Winchester 70 Express rifles. It provides a quick-detach mounting solution that lets you install and remove your optic easily while returning close to your original zero. Crafted with durable steel and finished in matte black, this base is suited to hunters and shooters who want secure scope attachment without sacrificing convenience.

Key Features

Purpose-Built for Winchester 70 Pre-1964:
• Specifically engineered to fit the receiver mounting pattern on Pre-1964 Winchester 70 Express rifles, ensuring a precise, dedicated fit.

Quick-Release Functionality:
• Patented lever mechanism enables fast detachment and reinstallation of your scope while maintaining close return-to-zero performance for reliable accuracy.

Two-Piece Design:
• Split configuration gives easier access to your rifle’s action and allows mounting flexibility compared with one-piece bases.

Matte Black Finish:
• Low-glare matte surface reduces reflections and complements most hunting rifles and tactical setups.

Durable Construction:
• Made from robust steel for strength and recoil resistance, built to withstand field conditions over the long haul.

Repeatable Performance:
• Engineered tolerances help ensure that when you remove and reinstall the scope, your point-of-impact remains close to where it was before removal (typically within about 0.5″ under consistent conditions).

Technical Specifications

Exact weight and dimensions may vary slightly by manufacturing batch and installer choices.

Performance & Practical Use

This quick-release base offers a practical way to mount a scope on classic Winchester Model 70 Express rifles manufactured before 1964. Rather than a fixed base that stays permanently in place, the quick-release mechanism lets you remove your optic without disassembling the entire mounting system. Shooters returning scopes to zero after removal typically see only minor shifts in point of impact, making this setup effective for hunters who switch optics or remove scopes for transport or storage.

The two-piece layout also gives you easier access to the rifle’s lock-up area, which can be an advantage when working with certain stocks or performing routine maintenance. The secure engagement between the base and rings helps resist movement from recoil, keeping your scope aligned for dependable performance shot after shot.

Best Suited For

✔ Owners of Pre-1964 Winchester 70 Express rifles looking for dedicated scope mounting hardware
✔ Hunters and shooters who want to quickly remove and reinstall optics while maintaining close to zero
✔ Enthusiasts upgrading traditional dovetail mounts to a more user-friendly quick-release system
✔ Those who prefer a matte finish to reduce glare in bright field conditions

User Tips

Match to Your Rifle:
Verify your Winchester 70 Express is a pre-1964 model before ordering — different production years require different mounts.

Choose Compatible Rings:
Pair this base with Leupold-compatible rings sized for your scope tube and desired height for ideal eye relief.

Tool Familiarity:
A Torx wrench (often included) makes installation and removal straightforward — familiarize yourself with the quick-release levers before field use.

Check Return-to-Zero:
Perform a quick bore sight after installation and once more after the first round or two to confirm alignment.

Maintenance:
Periodically check that mounting screws and levers stay snug to prolong zero retention and readiness.