PROOF Research .224 CF Blank Bolt 22" 1-7 Twist Sendero Barrel

Building a precision rifle starts with the barrel, and the PROOF Research .224 CF Blank Bolt 22\" 1-7 Twist Sendero Barrel gives you a match-grade foundation for everything from competitive target shooting to varmint hunting. This is a blank bolt barrel—meaning you're getting the tube and breech without the bolt face already cut—so it fits seamlessly into a gunsmithing build or custom rifle project where you're controlling every variable. The .224 caliber is a proven lightweight magnum that delivers speed and accuracy across a wide range of bullet weights, and the 1-7 inch twist rate handles the full spectrum of modern .224 projectiles without compromise.

The 22-inch Sendero contour strikes a balance that serious long-range shooters understand: enough mass in the barrel to manage heat and vibration during extended shooting sessions, but shaped to keep overall weight reasonable. PROOF Research has earned its reputation in precision rifle circles for consistent, repeatable accuracy, and the specs here reflect that commitment. The 2.5-inch breech diameter and 1.20-inch shank diameter integrate with standard modern rifle actions, giving gunsmiths and builders the compatibility they need without surprises.

Whether you're assembling a high-power competition rifle, a precision varmint gun, or a custom long-range hunting build, this barrel delivers the accuracy and reliability that separate quality builds from box-stock rifles. It's a component for serious shooters who know that barrel choice matters.

Key Features

• Blank bolt design for custom gunsmithing builds and precision rifle projects
• 1-7 inch twist rate optimized for modern .224 caliber ammunition
• 22-inch Sendero contour balances thermal stability with practical weight
• 2.5-inch breech diameter and 1.20-inch shank for standard modern rifle actions
• PROOF Research quality control for consistent accuracy

Specifications

Frequently Asked Questions

What is a blank bolt barrel and who should buy it?

A blank bolt barrel comes without the bolt face cut or threaded, making it ideal for custom gunbuilds where you're assembling or working with a gunsmith. If you're starting from a receiver or action and building up a precision rifle, a blank bolt barrel gives you full control over the final product.

Will this barrel work with my modern rifle action?

The 2.5-inch breech diameter and 1.20-inch shank are standard for modern rifle actions. Confirm your specific action's compatibility with your gunsmith before ordering.

What ammunition does the 1-7 twist rate handle?

The 1-7 inch twist is fast enough to stabilize heavier .224 projectiles while remaining compatible with lighter bullets in the caliber. Check with the bullet manufacturer or your gunsmith for specific load recommendations.

Is this barrel threaded?

This is a blank bolt barrel, so the muzzle is not pre-threaded. Your gunsmith or builder will thread it according to your specifications for whatever muzzle device you plan to use.