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Kelbly Proof Pre-fit barrels


Proof Research Carbon fiber barrels.

Intended to be used with the Kelbly Nanook, Promethius & Nanook actions.

All chamber/machine work has been performed by Kelbly rifles or Hells Canyon Armory.

Thread protector is included.

Caliber is engraved on the barrel shank.

Kelbly Proof Research Carbon Fiber Pre-fit barrels

J&A Outdoors has teamed up with Kelbly rifles to offer Proof Pre-fit barrels!


Since 1981, Kelbly has been producing the highest caliber of competition rifles and actions! Kelbly actions are extremely repeatable, so nice in fact, we are able to offer pre-fit barrels for their actions configured in a shouldered barrel. This means there is no barrel nut to worry about, with the use of a barrel vise you can spin off an old shot-out barrel and these barrels will thread directly back on and headspace correctly to your bolt. It’s as simple as that.  Getting a custom barrel cut to the length, contour, and chamber of your choice has never been easier!

The Kelbly Atlas, Prometheus, and Nanook all have an offering with a .942″ headspace length, which is what this fixed-shouldered builder is for.


Kelbly Nanook – (jaoutdoors.com)

Kelbly Atlas Tactical Actions – (jaoutdoors.com)

Proof Research Archives – (jaoutdoors.com)

Kelbly Rifles | Custom Rifles | Custom Rifle Actions | Rifle Builders


Kelbly Pre-fit Carbon Fiber Barrels


Carbon fiber has long been hailed across many industries—aerospace, cycling, alternative energy—as a wonder material making everything lighter and stronger. When employed in a rifle barrel the benefits extend beyond reducing weight and increasing strength. Our patented manufacturing process begins with full-profile, match-grade 416R stainless steel barrel blanks that are made in our firearms division. These blanks are then turned down to a significantly reduced profile greatly reducing weight. This reduced contour barrel is then wrapped with high-strength, aerospace-grade carbon fiber impregnated with a proprietary matrix resin developed by our advanced composites division, PROOF Research ACD. The carbon fibers we use have a unique ability to diffuse heat along the length of the barrel (much like fiber optics transmit light). Carbon fiber also moves heat very effectively through the wall (thickness) of the barrel greatly increasing heat transport resulting in barrels that cool faster, maintain accuracy over longer sessions of fire, and live longer. The end result is an aerospace-grade, high-fiber content composite barrel that is stronger, lighter, as accurate as the finest precision steel barrel, and durable to perform in the most demanding environments. They’re not just lighter—they’re better.


300 PRC, 7 SAUM, 6.5 PRC, 300 WSM, 7 PRC

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