Proof Research Impact Precision 777R/NBK 7mm Backcountry 16.5" Threaded Barrel

Proof Research Impact Precision 777R/ NBK 7mm Backcountry Threaded Rifle Barrel 16.5 in Sendero 8 Twist Pxt 5/8-24 Thread 2.1Weight Carbon. 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. Specifications for Proof Research Impact Precision 777R/ NBK 7mm Backcountry Threaded Rifle Barrel: Manufacturer: Proof Research Color: Carbon Caliber: 7mm Backcountry Projectile Caliber: .284 Caliber Barrel Material: Stainless Steel Barrel Twist Rate: 1-8 Barrel Profile: Sendero Firearms Threads Per Inch: 5/8x24 Gun Make: Impact Precision Gun Model: Impact Precision 777R Impact Precision NBK Gun Type: Rifle Package Contents: Proof Research Impact Precision 777R/ NBK 7Bc Threaded Rifle Barrel What firearm models does the manufacturer say Proof Research Impact Precision 777R/ NBK 7mm Backcountry Threaded Rifle Barrel is compatible with? The manufacturer suggests that Proof Research Impact Precision 777R/ NBK 7mm Backcountry Threaded Rifle Barrel is compatible with Impact Precision NBK Impact Precision 777RProof Research 156254: Impact Precision 777R/ NBK 7mm Backcountry Threaded Rifle Barrel 16.5 in Sendero 8 Twist Pxt 5/8-24 Thread 2.1Weight Carbon