Proof Research 24" Carbon Fiber Wrapped Bolt Action Barrel Blank, .308 Cal, Sendero Contour, 1:10" Twist, 5 Grooves

A Proof Research 24" carbon fiber wrapped bolt action barrel blank in .308 Cal gives you the foundation for a lightweight, durable precision rifle built exactly to your specifications. This Sendero contour blank arrives ready for a gunsmith to thread and chamber, making it ideal for custom rifle builds where weight savings and thermal performance matter—whether you're assembling a long-range hunting rifle, a competition build, or a specialized tactical platform. Proof Research's carbon fiber construction delivers a significant weight reduction compared to traditional steel barrels while maintaining the rigidity and accuracy you need for serious shooting.

Carbon fiber wrapping insulates the steel bore from temperature extremes, which translates to cooler barrel temps during extended shooting sessions and more consistent point-of-impact across high round counts. That thermal stability is a real advantage when you're working through a load development session, shooting matches, or hunting in variable conditions. The material itself is inherently resistant to surface damage—nicks, dings, and corrosion that would compromise a traditional barrel are largely non-issues here, so your investment stays protected through years of field use and transport.

The 1:10" twist rate and 5-groove rifling are optimized for .308 Winchester, supporting the full range of factory and handloaded ammunition in common use. The Sendero contour profile balances accuracy potential with practical handling weight—it's a proven contour for precision rifle work that doesn't demand a magnum or exotic cartridge. Since this is a blank, chamber and thread specifications are up to you and your gunsmith, giving you complete control over the final build.

Key Features

• Carbon fiber wrapped construction reduces weight substantially versus traditional steel barrels
• Improved heat dissipation keeps barrel temperatures lower during extended shooting
• Resistant to rust, corrosion, and surface damage from handling and field use
• Sendero contour optimized for precision rifle applications
• Arrives blank—ready for professional chambering and threading to your specifications
• 1:10" twist rate suited for standard .308 Win ammunition

Specifications

Frequently Asked Questions

What gunsmith work is needed before I can use this barrel?

This barrel arrives as a blank. You'll need to have a gunsmith thread the breech end to fit your action and chamber it to your desired specification (.308 Win, but the exact chamber reamer is your choice). Threading and chambering must be performed by a qualified gunsmith before the barrel can be installed and used.

How much weight does a carbon fiber wrapped barrel save compared to a steel barrel?

Proof Research's carbon fiber wrapped barrels are up to 64% lighter than traditional steel barrels of comparable length and contour, making them an excellent choice for hunters and precision riflemen who want to reduce overall rifle weight without sacrificing accuracy or durability.

Is the carbon fiber wrap prone to damage or delamination in the field?

Carbon fiber wrapped barrels are highly resistant to nicks, dings, scratches, and weather-related corrosion. The wrap protects the bore from environmental damage and maintains structural integrity through years of field use, transport, and storage.

What type of rifles is the Sendero contour suited for?

The Sendero contour is a proven profile for precision rifle builds, delivering excellent accuracy potential while maintaining manageable weight and handling. It's well-suited for long-range hunting, precision rifle competitions, and custom bolt-action builds where balanced accuracy and field practicality are priorities.