The Douglas 7MM 1-9 Twist CM #4 Contour Ultra Rifled Barrel delivers exceptional accuracy and repeatable performance for precision rifle builds, combining Chrome Moly Steel construction with a #4 contour and an aggressive Ultra Rifled bore to maximize bullet stability and mph potential. Chambered in AAJ_284/7 mm (.284) and featuring a 1-9 twist, this barrel is engineered to stabilize a wide range of 7mm projectiles, enabling tight groupings at extended distances while maintaining manageable recoil characteristics. The #4 contour provides a balanced blend of rigidity and maneuverability, contributing to predictable thermal behavior and consistent muzzle velocity across long strings of fire, whether youre dialing in load development, conducting field testing, or chasing long-range targets. Douglas reputable engineering ensures smooth rifling transitions and durable chrome moly steel performance, supporting reliable function under demanding field conditions. This Ultra Rifled barrel is an excellent choice for serious shooters seeking to elevate accuracy, load customization, and rifle longevity, delivering precise, repeatable results for competition, hunting, and high-precision field applications.