Proof Research .284 Cal 26″ Sendero CF Barrel Blank 1:8 Twist

Proof Research offers a carbon-fiber wrapped barrel blank intended for precision bolt-action rifle builds in .284 caliber. The blank features a 26″ Sendero contour and a 1:8″ rate of twist, built from a turned match-grade 416R stainless core and finished with a high-strength aerospace carbon fiber wrap. The reduced-profile Sendero design reduces weight while maintaining match-grade dimensions, improving heat dissipation and minimizing harmonic vibration during sustained use.

Key Specifications

• The caliber designation is .284.
• The cartridge designation is .284 Winchester.
• The barrel length is 26″.
• The rate of twist is 1:8″.
• The contour is Sendero.
• The barrel type is a Blank (bolt-action).
• The bore type is Rifled.
• The exterior finish is Carbon Fiber over a match-grade 416R stainless core.
• The blank is manufactured with 5 grooves.

Engineered for builders and precision shooters who value a lighter, thermally stable barrel platform, this Sendero carbon-fiber blank delivers match-grade construction without excess weight. Its combination of a turned 416R stainless core and aerospace-grade carbon fiber wrap provides a consistent, durable foundation for long-range and hunting rifle assemblies.