{"product_id":"proof-research-106426-bolt-action-284-winchester-16-5-1-8-twist-sendero-carbon-fiber-wrapped-barrel","title":"Proof Research 106426 Bolt Action .284 Winchester 16.5\" 1:8 Twist Sendero Carbon Fiber Wrapped Barrel","description":"\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eThe \u003cstrong\u003e\u003cspan style=\"background-color: #ffff00;\"\u003eProof Research 106426\u003c\/span\u003e\u003c\/strong\u003e is a \u003cstrong\u003ecarbon fiber wrapped bolt-action rifle barrel blank\u003c\/strong\u003e chambered in \u003cstrong\u003e\u003cspan style=\"background-color: #ffff00;\"\u003e.284 Winchester\u003c\/span\u003e\u003c\/strong\u003e. Cut to \u003cstrong\u003e16.5\"\u003c\/strong\u003e with a \u003cstrong\u003e1:8\u003c\/strong\u003e twist rate that stabilizes the heavier 7mm projectiles typically loaded for this case, this blank is profiled in the popular \u003cstrong\u003eSendero\u003c\/strong\u003e contour - a heavy, straight taper that pairs naturally with rigid chassis systems and target-style stocks used on long-range and backcountry hunting rifles.\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eProof Research builds these barrels around a fluted stainless steel core that is then wrapped in a high-modulus carbon fiber sleeve bonded with an aerospace-grade epoxy. The result is a \u003cstrong\u003eSendero-contour blank weighing roughly 2 lbs 6 oz\u003c\/strong\u003e while shedding heat noticeably faster than a comparable all-steel barrel, helping maintain consistent accuracy across extended strings of fire and improving the overall weight distribution of a mountain or precision rifle build. This blank ships with a \u003cstrong\u003e2.5\"\u003c\/strong\u003e breech length and a \u003cstrong\u003e1.20\"\u003c\/strong\u003e shank diameter, giving your gunsmith the key dimensions needed to fit it to a range of popular long-action bolt receivers used in custom hunting and precision rifle applications.\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eSold as a \u003cstrong\u003ebarrel blank\u003c\/strong\u003e rather than a fully headspaced, threaded, and finished factory assembly, the \u003cstrong\u003e106426\u003c\/strong\u003e is profiled in the Sendero contour and ready for your gunsmith to machine the action-specific tenon, breech, and muzzle threads to your build. Whether you are assembling a backcountry \u003cstrong\u003e.284 Winchester\u003c\/strong\u003e hunting rifle or stepping up a precision long-range platform, this Proof Research carbon fiber Sendero blank delivers match-grade accuracy potential with the lightweight handling Proof barrels are known for.\u003c\/span\u003e\u003c\/p\u003e","brand":"Proof Research","offers":[{"title":"Default Title","offer_id":55077176738114,"sku":"195867","price":852.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0997\/7921\/5682\/files\/hires_5db63efb-0dcb-4a8a-8b14-a526ad9ce388.png?v=1784757329","url":"https:\/\/centerfiresystems.com\/products\/proof-research-106426-bolt-action-284-winchester-16-5-1-8-twist-sendero-carbon-fiber-wrapped-barrel","provider":"Centerfire Systems","version":"1.0","type":"link"}