Browning X-Bolt Long Action Magnum 3-Round Polymer Magazine - Fits 338 Win Mag, 300 Win Mag, 7mm Rem Mag - Black

The Browning X-Bolt Long Action Magnum 3-round polymer magazine is a reliable, fast-reload solution for shooters running magnum calibers in their X-Bolt rifles. Built from lightweight polymer construction, this detachable rotary magazine feeds 338 Winchester Magnum, 300 Winchester Magnum, and 7mm Remington Magnum cartridges with the straight feeding path that modern hunters and long-range shooters demand. Unlike traditional offset leaf-spring designs, the X-Bolt rotary magazine aligns cartridges directly in line with the bolt for consistent, trouble-free chambering—a geometry that matters when you're set up on game or on the clock at a match.

The magazine rotates downward into your hand thanks to an ergonomic release that's mounted directly on the mag itself, making reloads intuitive and fast even in the field or with gloves on. The polymer construction keeps weight down without sacrificing durability, and the three-round capacity fits the magazine well of X-Bolt magnum rifles without excessive protrusion. Since these magazines are fully detachable, you can keep spares loaded and staged in your pack or jacket pocket—a tactical advantage for backcountry hunts or practice sessions where speed and reliability are both important.

This magazine works exclusively with Browning X-Bolt rifles chambered in the three magnum cartridges listed. If you're a precision rifle builder or a hunter who values a modular magazine system and dependable performance with big-game rounds, this is a smart inventory piece.

Key Features

• Rotary design feeds cartridges straight in line with the bolt for positive feeding
• Lightweight polymer construction reduces overall weight
• Ergonomic magazine-mounted release rotates directly into your hand
• Three-round capacity sized for X-Bolt magnum rifle magazine wells
• Fully detachable—load spares and carry them in pocket or pack
• Compatible with 338 Win Mag, 300 Win Mag, and 7mm Rem Mag X-Bolt rifles

Specifications

Frequently Asked Questions

Will this magazine fit my Browning X-Bolt rifle?

Yes, if your X-Bolt is chambered in 338 Winchester Magnum, 300 Winchester Magnum, or 7mm Remington Magnum. This is a long-action magnum magazine and will not fit short-action or other caliber configurations.

What cartridges does this magazine feed?

This three-round magazine is designed for 338 Winchester Magnum, 300 Winchester Magnum, and 7mm Remington Magnum. Do not use it with other calibers or action lengths.

Can I carry multiple loaded magazines for fast reloads?

Yes—the fully detachable design allows you to keep additional magazines loaded and stage them in a pack, vest pocket, or range bag for quick swaps in the field or at the bench.

How does the rotary design improve feeding?

The cartridges align directly in line with the bolt path rather than being fed from an offset position, which creates a straighter, more reliable feed path into the chamber—especially important with large magnum rounds.