Proof Research .264 Caliber Carbon Fiber Sendero Barrel, 16.5-inch, 1-8 Twist

The Proof Research .264 Caliber Carbon Fiber Sendero Barrel is a bolt-action rifle barrel from Proof Research (brand part no. 105467) bored and rifled for .264-bore (6.5mm) cartridges, shipped as an unchambered blank for a gunsmith to thread and chamber. It uses Proof Research’s carbon-fiber-wrapped stainless steel liner construction, which trims weight and helps dissipate heat versus a plain steel barrel of the same profile. It carries the established Sendero heavy-taper contour popular on long-range hunting rifles, a 1-8 twist rate, and a shorter 16.5-inch overall length.

Key Specifications

• It is bored and rifled for .264-bore (6.5mm) cartridges; it ships as an unchambered blank for a gunsmith to thread, chamber, and headspace.
• It uses Proof Research’s carbon-fiber-wrapped stainless steel liner construction, lighter and cooler-running than a plain steel barrel of the same profile.
• It carries the Sendero heavy-taper contour, a profile popular on long-range hunting rifles.
• It has a 1-8 rate of twist, a faster twist chosen to stabilize longer, heavier-for-caliber 6.5mm bullets.
• It measures a shorter 16.5 inches overall, favoring handling over the extra velocity of a longer barrel.

Frequently Asked Questions

What does Sendero contour mean? Sendero describes an established heavy-taper barrel profile popular on long-range hunting rifles, balancing rigidity with manageable weight.

Why choose a 16.5-inch barrel over a longer one? A shorter barrel trims overall rifle length and weight for easier handling, at some cost to muzzle velocity compared to a longer barrel of the same contour.

Is this a drop-in barrel for any action? This is an unchambered barrel blank, not a guaranteed drop-in fit for every action; confirm your action’s thread and headspace specifications before ordering.

Buy the Proof Research .264 Caliber Carbon Fiber Sendero Barrel, 16.5-inch, 1-8 Twist

Browse the Proof Research .264 Caliber Carbon Fiber Sendero Barrel, 16.5-inch, 1-8 Twist in our Rifle Parts lineup at Schaefer Defense; we ship it fast and fully insured from our Lubbock, TX gun shop.