{"product_id":"proof-research-103395-224-cal-18-1-8-twist-carbon-fiber-sendero-bolt-action-barrel-blank","title":"Proof Research 103395 224 Cal 18\" 1:8 Twist Carbon Fiber Sendero Bolt Action Barrel Blank","description":"\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eThe \u003cstrong\u003e\u003cspan style=\"background-color: #ffff00;\"\u003eProof Research 103395\u003c\/span\u003e\u003c\/strong\u003e is a premium \u003cstrong\u003ebolt action barrel blank\u003c\/strong\u003e built around a \u003cstrong\u003e224 caliber\u003c\/strong\u003e bore and intended for custom rifle builds chambered in cartridges such as the \u003cstrong\u003e223 Remington\u003c\/strong\u003e, \u003cstrong\u003e22-250 Remington\u003c\/strong\u003e, and \u003cstrong\u003e220 Swift\u003c\/strong\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eThis blank measures \u003cstrong\u003e18 inches\u003c\/strong\u003e in length with a \u003cstrong\u003e1:8 twist rate\u003c\/strong\u003e and is machined in the heavy \u003cstrong\u003eSendero contour\u003c\/strong\u003e. At its core is \u003cstrong\u003e416R stainless steel\u003c\/strong\u003e that is double stress-relieved and precision honed, then wrapped in a high-modulus \u003cstrong\u003ecarbon fiber\u003c\/strong\u003e sleeve. The carbon fiber wrap drops weight by up to \u003cstrong\u003e64%\u003c\/strong\u003e compared to a traditional steel barrel of the same contour, while delivering \u003cstrong\u003ematch-grade accuracy\u003c\/strong\u003e and noticeably improved heat dissipation during long strings of fire.\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eThe blank is finished to a \u003cstrong\u003e2.50\" breech length\u003c\/strong\u003e with a \u003cstrong\u003e1.20\" shank diameter\u003c\/strong\u003e, ready for the gunsmith to chamber, finish, and fit it to your action. Approximate weight is \u003cstrong\u003e2 lbs 10 oz\u003c\/strong\u003e. Made in the \u003cstrong\u003eUSA\u003c\/strong\u003e.\u003c\/span\u003e\u003c\/p\u003e","brand":"Proof Research","offers":[{"title":"Default Title","offer_id":55076989501762,"sku":"195862","price":852.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0997\/7921\/5682\/files\/hires_69d20695-9bf4-4aea-a7e9-02545f77ba8e.png?v=1784757150","url":"https:\/\/centerfiresystems.com\/products\/proof-research-103395-224-cal-18-1-8-twist-carbon-fiber-sendero-bolt-action-barrel-blank","provider":"Centerfire Systems","version":"1.0","type":"link"}