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Carbon fiber is commonly recognized as a superb material in various industries such as aerospace, cycling, and alternative energy. However, when used in a rifle barrel, its advantages go beyond weight reduction and increased strength. Proof Research utilizes a patented manufacturing process that begins with full-profile, match-grade 416R stainless steel barrel blanks produced in their firearms department. These blanks are then turned to a reduced profile, minimizing weight. Thereafter, high-strength, aerospace-grade carbon fiber impregnated with a proprietary matrix resin developed by Proof Research ACD, is wrapped around the reduced contour barrel. The carbon fibers used have unique abilities to diffuse heat along the length of the barrel, much like fiber optics transmit light; they also move heat effectively through the wall of the barrel, greatly increasing heat transport. As a result, barrels are produced that cool faster and maintain accuracy over extended sessions of fire whilst lasting longer. The finished product is a high-fiber content composite barrel of aerospace-grade quality that is stronger and lighter than conventional steel barrels. It is accurate as the most precise precision steel barrel and can perform effectively even under the most arduous conditions. In short, Proof Research’s composite barrels are not just lighter, they are more efficient too.