Browning Base XBLT 20 MOA Bubble Level Long Action Scope Mount

The Browning XBLT 20 MOA Bubble Level Long Action Scope Mount is a precision base system built for shooters who demand rock-solid optic mounting and repeatable accuracy from setup to field use. This scope mount pairs Picatinny-style compatibility with an integrated bubble level—a practical feature that eliminates guesswork when aligning your rifle's reticle and ensuring level shots, especially valuable during long-range hunting or range sessions where cant can cost you accuracy.

Built from aircraft-grade alloy, this base is engineered for durability in rough conditions. The X-Bolt design uses four mounting screws per base (eight total) to lock your scope rings securely to the receiver, minimizing shift or play under recoil. The Picatinny mounting interface works with both Weaver and Picatinny-style rings, giving you flexibility in ring selection and a straightforward swap if needed.

The 20 MOA incline built into this long action base is ideal for extended-range shooting, where that pre-set angle reduces adjustment burden on your scope's turrets and keeps you dialed for distance without maxing out vertical travel. Whether you're assembling a long-range hunting rig, a precision rifle for competition, or simply upgrading an existing long action platform, this mount handles the mechanical grunt so your scope and rings can focus on clarity and holdover.

Key Features

• 20 MOA factory incline for extended-range accuracy
• Integrated bubble level for quick rifle alignment
• Four screws per base (eight total) for secure, repeatable mounting
• Aircraft-grade alloy construction resists wear and environmental stress
• Picatinny platform compatible with both Weaver and Picatinny-style rings
• Designed for long action receivers

Specifications

Frequently Asked Questions

Will this scope mount work with my Weaver rings?

Yes. The Picatinny-style base is compatible with both Weaver-style and Picatinny-style rings, giving you flexibility in ring choice.

What is the 20 MOA incline used for?

The 20 MOA pre-set angle is designed to support extended-range shooting, reducing the turret adjustments needed on your scope and keeping elevation travel available for distance shooting without maxing out the scope's vertical adjustment range.

Is this base suitable for long action rifles only?

Yes, this mount is designed specifically for long action receivers. Confirm your rifle's action length before purchasing.

How does the bubble level help during setup and field use?

The integrated bubble level lets you quickly verify that your rifle is level when mounting the scope, ensuring the reticle is true to the bore and helping prevent cant-induced shot deflection in the field.