The Proof Research Defiance Ruckus Pre-Fit 7 PRC 22" 1-8 Twist Carbon Fiber barrel is built for shooters who want match-grade precision in a lightweight, easy-to-install package. Using a 22-inch Sendero contour with a true 1-in-8 twist, Proof combines a 416R stainless steel core with an aerospace-grade carbon fiber wrap to deliver steel-barrel accuracy while shedding significant weight.

This pre-fit barrel is chambered in 7mm PRC and machined specifically for Defiance Ruckus and Tenacity actions, arriving threaded 5/8-24, chambered, and pre-headspaced for a shouldered, drop-in-style fit. The carbon fiber construction improves heat dissipation, helping the barrel cool faster and maintain consistent point of impact during extended range sessions or demanding hunts. Ideal for long-range hunting and precision rifle builds, it balances stiffness, weight savings, and durability that serious shooters appreciate from Proof Research’s advanced barrel technology.

Key Features:

• Manufacturer: Proof Research
• Model: Defiance Ruckus Pre-Fit 7 PRC 22" 1-8 Twist Carbon Fiber
• Caliber: 7mm PRC
• Barrel Length: 22 inches
• Twist Rate: 1 in 8 inches
• Muzzle Threads: 5/8-24
• Contour: Sendero
• Construction: Carbon-fiber-wrapped 416R stainless steel core
• Fit: Pre-fit for Defiance Ruckus and Tenacity actions
• Approximate Weight: About 3 to 3.35 lbs