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This is the barrel a lot of 6.5mm builders reach for when they want to cut ounces off the front end of a rifle without walking back on accuracy. Proof Research starts with a full-profile, match-grade 416R stainless steel barrel, turns it down to a slim core, then wraps it in aerospace-grade carbon fiber set in their own proprietary resin. The result is a stiff, light barrel that dumps heat quickly and holds its point of impact even after a warm string. This particular model is a Sendero contour blank measuring 24 inches with a 1:8 twist, and it ships unchambered, so it's built to be finished and fitted by your gunsmith.
The 1:8 twist is the sweet spot for the modern 6.5mm world. It stabilizes the heavier, high-BC match bullets that make cartridges like the 6.5 Creedmoor, 6.5 PRC, .260 Rem, 6.5×47 Lapua and 6.5-284 so effective at distance. Whether you're setting up a long-range target rig or a lightweight mountain hunting gun, the .264 caliber bore paired with a 24-inch tube gives you the velocity and stability to reach way out there.
The Sendero contour rides a 2.5-inch breech shank at 1.20 inches in diameter, and the whole barrel comes in right around 3 pounds 2 ounces. That's noticeably lighter than a comparable steel Sendero, which is the entire point. Bore is cut with 4 grooves and finished to the same standard Proof runs across their bolt-action lineup.
Keep in mind this is a barrel blank, not a drop-in part. It needs to be chambered, threaded, crowned and headspaced by a qualified gunsmith to match your action and cartridge choice. If you've already got a build in mind and a smith lined up, this is one of the most respected carbon barrels you can hand them.
This is a barrel blank, so it arrives unchambered and unthreaded. It's designed to be chambered, threaded, crowned and headspaced by a qualified gunsmith to fit your specific action and cartridge. That's actually the appeal for builders, since the blank format lets you spec the exact chamber you want.
The .264 caliber bore with a 1:8 twist covers the popular 6.5mm family, including 6.5 Creedmoor, 6.5 PRC, .260 Remington, 6.5×47 Lapua and 6.5-284. The 1:8 rate is fast enough to stabilize the heavy, high-BC match bullets that make these cartridges shine at long range.
This Sendero carbon barrel comes in around 3 pounds 2 ounces, which is meaningfully lighter than a steel barrel of the same profile. Proof Research turns a match-grade 416R stainless core down to a slim profile and wraps it in carbon fiber, so you get the stiffness and heat management without carrying the extra steel.
Yes, that's one of the biggest advantages of the design. The carbon fiber pulls heat away from the core faster than solid steel, so the barrel cools quicker and holds accuracy through longer strings of fire. It also contributes to longer barrel life over time.
| UPC | 843068100912 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | 100912 |
| Length | 24'' |
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