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This is the barrel a lot of custom rifle builds are chasing when they want to lose weight up front without sacrificing the qualities that make a rifle shoot. Proof Research starts with a match-grade 416R stainless steel core, drills and rifles it in-house, then wraps it in aerospace-grade carbon fiber using their patented helical process. The result is a .264 caliber, 24-inch blank in the Sendero contour with a 1:7.5 twist and four grooves, built for people who know exactly what they want out of a 6.5mm build.
The Sendero profile gives you a stout, rigid barrel that behaves predictably as it heats, and the carbon wrap runs up to 64 percent lighter than a comparable all-steel contour. That weight lives out at the muzzle, so pulling it off makes a noticeable difference in how a rifle carries and balances. The fast 1:7.5 twist is the standout spec here. It's set up to stabilize the long, heavy, high ballistic coefficient 6.5mm projectiles that long-range folks and reloaders reach for, so you've got room to run the heavier bullet weights without worrying about stability going long.
The critical surfaces stay steel where it counts. The breech, muzzle, and bore are 416R stainless, with the carbon fiber composite surrounding the core to add external stiffness and pull heat out through the barrel walls. Better heat dissipation means the barrel cools faster and holds its point of impact through longer strings of fire. Specs run a 2.5-inch breech and a 1.20-inch shank diameter, with a finished weight right around 3 pounds 2 ounces.
This is a blank, so it arrives ready for a qualified gunsmith to thread, chamber, crown, and headspace to your action. The Sendero contour measures close to a standard M24 taper, so most varmint and tactical stock channels will accept it, though some fitting is normal with any aftermarket barrel. If you're building a lightweight 6.5mm hunting or precision rig and want a barrel that punches above its weight, this one earns its spot in the lineup.
It's a barrel blank, so it ships unthreaded and unchambered. A qualified gunsmith will need to thread, chamber, crown, and headspace it to your specific action before it's ready to fire. Because it's carbon fiber wrapped over a steel core, it's worth using a smith who has experience machining these barrels.
The fast 1:7.5 twist is built to stabilize the long, heavy, high-BC 6.5mm bullets that long-range and precision shooters favor. It gives you the flexibility to run the heavier projectile weights and keep them stable out at distance. Lighter 6.5mm bullets will still shoot, but this twist really shines with the heavies.
Proof Research carbon fiber barrels run up to 64 percent lighter than a comparable all-steel contour. This finished .264 blank weighs about 3 pounds 2 ounces, and since that weight comes off the muzzle end, it makes a real difference in how the rifle carries and balances. It's a popular choice for mountain hunting builds and any rig where front-end weight matters.
The Sendero profile measures very close to a standard M24 taper, so most varmint and tactical stock channels will accept it. Some minor inletting or fitting is normal with just about any aftermarket barrel swap, and most gunsmiths fold that into their installation work. If you're unsure about a specific stock, it's smart to confirm the fit before you commit.
| UPC | 843068110171 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | 110171 |
| Length | 24'' |
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