A New Era of Rifle Barrel Technology

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The technology keeps improving!

PROOF Exponential Twist (PXT) is a groundbreaking advancement in rifling that improves durability, accuracy and shootability.

PROOF Research developed PXT to push beyond the limitations of conventional barrels, backed by extensive military testing and research. Engineered to meet the demands of modern high-pressure ammunition, PXT represents a significant advancement in barrel technology by delivering longer barrel life, improved consistency and enhanced performance.

Unlike conventional constant-twist rifling, PXT uses a progressively changing twist profile designed to reduce initial bullet stress while maintaining rotational stability.

PXT is a complete redesign of how the bullet engages the rifling during initial rotation — an update PROOF believes is necessary as the industry advances and ammunition continues to evolve toward higher pressures and performance.