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Pete Rickard
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.
| Caliber | .224 |
| Barrel Length | 22 inches |
| Twist Rate | 1 in 7 inches |
| Barrel Breech Diameter | 2.5 inches |
| Shank Diameter | 1.20 inches |
| Contour | Sendero |
| Weight | 3 lbs 2 oz |
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.
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.
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.
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.
Pete Rickard
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.
| Caliber | .224 |
| Barrel Length | 22 inches |
| Twist Rate | 1 in 7 inches |
| Barrel Breech Diameter | 2.5 inches |
| Shank Diameter | 1.20 inches |
| Contour | Sendero |
| Weight | 3 lbs 2 oz |
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.
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.
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.
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.
