CM7S .458 SOCOM XL 16″ Rifle

Purpose-Built 458 Bolt Action Rifle

The Chattahoochee Munitions CM7S .458 SOCOM XL 16″ Rifle is a purpose-built 458 Bolt Action Rifle designed to take the capabilities of the .458 SOCOM concept beyond the cartridge overall-length limitations of the traditional AR-15 platform.

Built on our CM7S short-action platform, .458 SOCOM XL takes advantage of the additional cartridge length available outside the AR-15 magazine envelope. This provides greater flexibility when loading the extremely heavy .458-caliber projectiles that make the platform particularly well suited to suppressed and subsonic applications.

At the heart of this 458 Bolt Action Rifle is a 16-inch barrel with a fast 1:10 twist rate, providing the rotational stability required for the exceptionally heavy projectiles the cartridge is capable of utilizing.

The rifle feeds from genuine MDT metal magazines modified by Chattahoochee Munitions specifically for the dimensions and feeding requirements of .458 SOCOM XL.

For shooters looking beyond a conventional large-bore rifle, the CM7S combines massive projectile capability with the accuracy, simplicity, and versatility of a purpose-built bolt-action platform.

Why Choose a 458 Bolt Action Rifle?

The .458 SOCOM cartridge was originally developed around the AR-15 platform. While this makes standard .458 SOCOM an effective large-bore option for the AR-15, that platform also imposes significant restrictions on cartridge overall length.

.458 SOCOM XL moves beyond those limitations.

By utilizing the CM7S short-action platform and an AICS-pattern magazine architecture, this 458 Bolt Action Rifle provides additional cartridge overall length for loading long, heavy .458-caliber projectiles.

Instead of designing the rifle around the dimensional limitations of an AR-15 magazine, Chattahoochee Munitions builds the CM7S around the capabilities of the cartridge.

The result is a specialized large-bore platform developed for shooters who want to take advantage of extremely heavy .458-caliber projectiles, particularly for suppressed and subsonic applications.

16″ Barrel with 1:10 Twist

The CM7S .458 SOCOM XL features a 16-inch barrel with a fast 1:10 twist rate in collaboration with Mos-Tek.

Projectile stabilization becomes increasingly important as projectile weight and length increase. The 1:10 twist rate used in this 458 Bolt Action Rifle is specifically selected around the heavy-projectile capabilities of .458 SOCOM XL.

The 16-inch barrel provides an excellent balance between barrel length, handling, and overall package size while maintaining the specialized capabilities that define the platform.

Combined with the compact CM7S action, the result is a highly maneuverable large-bore rifle capable of utilizing exceptionally heavy .458-caliber projectiles.

TriggerTech Primary Trigger

The CM7S comes standard with a TriggerTech Primary Remington 700 trigger, providing a clean, consistent break that complements the accuracy-focused CM7S platform.

Each trigger is set at approximately 1.5 pounds and is available with your choice of a flat or curved trigger shoe.

The predictable break of the TriggerTech Primary provides excellent trigger control and complements the inherent stability and accuracy of the CM7S bolt-action platform.

Built Around .458 SOCOM XL

The defining characteristic of this rifle is the cartridge itself.

Traditional .458 SOCOM is constrained by the dimensions necessary to function within the AR-15 platform. .458 SOCOM XL utilizes the additional room available in the CM7S short-action platform to increase usable cartridge overall length.

That additional length creates considerably more flexibility when working with long, heavy .458-caliber projectiles.

For shooters interested in a 458 Bolt Action Rifle specifically because of its heavy-projectile potential, the CM7S provides a platform engineered around those capabilities from the beginning.

Rather than simply adapting a conventional .458 SOCOM chamber to a bolt-action rifle, Chattahoochee Munitions developed the CM7S configuration around the expanded capabilities of .458 SOCOM XL.

Modified MDT Metal Magazine System

A cartridge as large as .458 SOCOM XL requires a magazine configured specifically around its dimensions.

The CM7S uses genuine MDT metal AICS-pattern magazines modified by Chattahoochee Munitions for .458 SOCOM XL. These modifications provide the cartridge clearance and feed geometry necessary to properly accommodate and present the oversized cartridge.

This magazine system allows the 458 Bolt Action Rifle to take advantage of the extended cartridge overall length available in the CM7S platform.

Chattahoochee Munitions also utilizes this modified MDT magazine architecture in our CM10 semi-automatic .458 SOCOM XL platform.

Designed Around Suppressed and Subsonic Performance

The CM7S platform is particularly well suited to suppressed shooting.

Unlike a semi-automatic action, a bolt-action rifle remains mechanically locked during firing. For shooters pursuing a quiet suppressed platform, eliminating the action cycling associated with a semi-automatic firearm provides another advantage.

Combine that with the ability to launch exceptionally heavy .458-caliber projectiles at subsonic velocities, and the CM7S becomes a compelling platform for specialized suppressed applications.

The fast 1:10 twist barrel provides the stabilization required by these heavy projectiles, while the .458 SOCOM XL cartridge configuration provides the additional overall length necessary to take advantage of projectile designs that would otherwise be constrained by AR-15 magazine dimensions.

The result is a 458 Bolt Action Rifle engineered around the characteristics that make heavy subsonic cartridges so unique.

Key Features

• Chattahoochee Munitions CM7S bolt-action platform
• Chambered in .458 SOCOM XL
• 16-inch barrel
• Fast 1:10 twist rate
• TriggerTech Primary Remington 700 trigger
• Flat or curved trigger shoe option
• Trigger pull set at approximately 1.5 lb
• Short-action architecture
• Designed around extremely heavy .458-caliber projectiles
• Genuine MDT metal magazine modified by Chattahoochee Munitions
• AICS-pattern magazine architecture
• Extended cartridge overall-length capability
• Purpose-built for suppressed and subsonic applications
• Manufactured and assembled by Chattahoochee Munitions

Specifications

• Caliber: .458 SOCOM XL
• Platform: CM7S Bolt Action
• Barrel Length: 16″
• Twist Rate: 1:10
• Trigger: TriggerTech Primary Remington 700
• Trigger Shoe: Flat or Curved
• Trigger Pull: Set at approximately 1.5 lb
• Magazine: Modified MDT Metal AICS-Pattern Magazine
• Weight: 6 lb 6 oz
• Overall Length: 23.875″ – 31.00″
• Length of Pull (LOP): 6.0″ – 13.5″

Who Is the CM7S .458 SOCOM XL For?

The CM7S isn’t intended to be another conventional bolt-action rifle.

It is designed for shooters specifically interested in the capabilities of large-diameter, extremely heavy projectiles and suppressed shooting.

If you’re looking for a 458 Bolt Action Rifle that moves beyond the dimensional restrictions of an AR-15-based .458 SOCOM, the CM7S provides a platform engineered specifically around that objective.

From the fast-twist barrel and TriggerTech Primary trigger to the modified MDT magazine system, the rifle is built around the cartridge rather than treating .458 SOCOM XL as an afterthought.

FAQ

What is a 458 Bolt Action Rifle?

A 458 Bolt Action Rifle is a bolt-operated rifle chambered for a .458-caliber cartridge. The CM7S uses .458 SOCOM XL, allowing the platform to take advantage of additional cartridge overall length and extremely heavy .458-caliber projectiles.

What is .458 SOCOM XL?

.458 SOCOM XL takes the .458 SOCOM concept beyond the cartridge overall-length restrictions imposed by the AR-15 platform. The additional space available in the CM7S short-action platform provides greater flexibility when loading long, heavy .458-caliber projectiles.

What is the barrel length?

The CM7S features a 16-inch barrel.

What is the barrel twist rate?

The barrel uses a 1:10 twist rate, selected to provide the rotational stability required by the exceptionally heavy projectiles that can be used with .458 SOCOM XL.

What trigger does the CM7S use?

The rifle comes standard with a TriggerTech Primary Remington 700 trigger set at approximately 1.5 pounds. Customers can select either a flat or curved trigger shoe.

What magazines does the CM7S use?

The rifle uses genuine MDT metal AICS-pattern magazines modified by Chattahoochee Munitions specifically to accommodate and feed .458 SOCOM XL.

Is .458 SOCOM XL the same as standard .458 SOCOM?

No. Standard .458 SOCOM was developed around AR-15 cartridge overall-length limitations. The CM7S .458 SOCOM XL configuration utilizes the additional cartridge length available in the short-action platform.

Is the CM7S designed for suppressed shooting?

Yes. The combination of the bolt-action CM7S platform, extremely heavy .458-caliber projectile capability, fast 1:10 twist barrel, and .458 SOCOM XL cartridge configuration makes this 458 Bolt Action Rifle particularly well suited to suppressed and subsonic applications.