The Proof Research Proof Bbl Ss Bolt 6-dash Di 26 Zermattsa 1-7.5 combines Precision Engineering with competitive-ready performance, delivering a high-velocity 6 Dasher platform built on the TL3/SR3 Short action for short-throw efficiency and consistent cycling. This 26-inch competition contour barrel is finished for pinpoint balance, featuring a 7.5 twist rate and a 5/8-24 muzzle thread that accommodates a wide range of precision muzzle devices and suppressors, while the lightweight 7lbs-5oz profile keeps the rifle nimble on the line and steady at extended distances. Designed to optimize accuracy and repeatability, the bore geometry, unconventional contour, and meticulous chambering work in concert to deliver tight groups and clean runouts under competition pressure, field conditions, or long-range practice. Whether youre dialing in precise load development or competing in precision matches, this barrel assembly from Proof Research integrates seamlessly with compatible receivers, ensuring durable performance and repeatable results season after season.