Proof Research has introduced PXT (Proof Exponential Twist Rifling), a new barrel technology that expands on the gain twist concept. This innovation aims to significantly increase barrel life, with claims of 30-100% improvement, and potentially enhance accuracy by reducing projectile deformation under higher pressures. The PXT barrels are available for AR-style and bolt-action platforms in various calibers and configurations, with an MSRP of $1350.
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