{"product_id":"proof-research-pxt-carbon-fiber-bolt-action-barrel-blank-308-win-20-1-10-twist-154243","title":"PROOF RESEARCH PXT Carbon Fiber Bolt Action Barrel Blank .308 Win 20\" 1:10 Twist 154243","description":"Product Description\n\u003cp\u003eThe PROOF RESEARCH PXT Carbon Fiber Barrel Blank in .308 Winchester combines next-generation rifling technology with the legendary lightweight performance and precision PROOF Research is known for. PXT -- PROOF Exponential Twist -- is a complete rethinking of conventional rifling geometry and twist progression, engineered to reduce engraving force, minimize throat erosion, and create a smoother transition as the projectile engages the rifling. By dramatically reducing the rifling lead angle and smoothing projectile engagement into the bore, PXT technology helps reduce wear, improve shot-to-shot consistency, and create less felt torque during firing for improved recoil control and the ability to stay on target more effectively. Built on PROOF's proven carbon fiber construction, this barrel blank delivers an exceptional stiffness-to-weight ratio and reduced overall rifle weight without sacrificing accuracy or durability. Designed for custom rifle builders and gunsmiths, this blank offers a premium foundation for lightweight hunting rifles, precision long-range systems, and modern high-performance rifle builds.\u003c\/p\u003e\n\n\u003ch2\u003eProduct Highlights\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePXT Rifling Technology:\u003c\/strong\u003e PROOF Exponential Twist reduces engraving force and minimizes throat erosion for a smoother, more consistent projectile engagement.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eExtended Barrel Life:\u003c\/strong\u003e Controlled testing has demonstrated a 30-100% increase in barrel life compared to conventional rifling, while maintaining PROOF's exacting accuracy standards.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCarbon Fiber Construction:\u003c\/strong\u003e Provides an exceptional stiffness-to-weight ratio, reducing overall rifle weight without compromising rigidity or performance.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSendero Contour:\u003c\/strong\u003e Features a Sendero contour with a 1.20\" shank diameter and 2.5\" barrel breech, making it ideal for precision long-range and hunting rifle builds.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCustom Builder Ready:\u003c\/strong\u003e At 20\" in length with a 1:10 PXT twist rate, this blank is purpose-built for gunsmiths and custom rifle builders seeking a premium .308 Win barrel solution.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eSpecs\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e PROOF RESEARCH\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCaliber:\u003c\/strong\u003e .308 Winchester\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBarrel Length:\u003c\/strong\u003e 20 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTwist Rate:\u003c\/strong\u003e 1:10 PXT (PROOF Exponential Twist)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBarrel Breech:\u003c\/strong\u003e 2.5\"\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter:\u003c\/strong\u003e 1.20\"\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eContour:\u003c\/strong\u003e Sendero\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 2 lbs 11 oz\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAction Type:\u003c\/strong\u003e Bolt Action\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBarrel Material:\u003c\/strong\u003e Carbon Fiber\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 843068154243\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMPN:\u003c\/strong\u003e 154243\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cem\u003eDisclaimer: We strive to provide accurate and up-to-date product descriptions, specifications, and images; however, errors or omissions may occasionally occur. We are not responsible for any inaccuracies or discrepancies in the content provided. If you notice anything incorrect or unclear, please contact us so we can correct it. When in doubt, we recommend verifying details directly with the product's manufacturer.\u003c\/em\u003e\u003c\/p\u003e\n]]\u0026gt;","brand":"PROOF RESEARCH","offers":[{"title":"Default Title","offer_id":44200102559866,"sku":"FLX-198908","price":1047.98,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1679\/0365\/files\/308992203.png?v=1788404082","url":"https:\/\/tlooutdoors.com\/products\/proof-research-pxt-carbon-fiber-bolt-action-barrel-blank-308-win-20-1-10-twist-154243","provider":"TLO Outdoors","version":"1.0","type":"link"}