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Carbon fiber is known to be a highly versatile material that has been used extensively in various industries such as aerospace, cycling, and alternative energy. Using carbon fiber in the manufacture of a rifle barrel provides several benefits that include reduced weight and increased strength. Proof has a patented manufacturing process that involves using full-profile, match-grade 416R stainless steel barrel blanks originating from its firearms division. The blanks are then shaped into a significantly reduced profile that considerably reduces their weight. These are then wrapped using aerospace-grade carbon fiber that has a high-strength and is impregnated with a proprietary matrix resin created by the brand's advanced composites division, PROOF Research ACD. The unique carbon fiber used in making the barrels diffuses heat along the entire barrel's length, similar to how fiber optics transmit light. Additionally, carbon fiber has an excellent ability to move heat more effectively through the barrel's wall thickness, leading to faster cooling, better accuracy even during extended firing sessions, and longer lifespan. In conclusion, Proof's aerospace-grade, high fiber content composite barrel made from carbon fiber is stronger and lighter than conventional precision steel barrels and can perform exceptionally well under the most demanding of environments.