Overview
- PROOF Research publicly announced the PROOF Exponential Twist (PXT) rifling system in a May 20–21 launch that the company says rethinks how a projectile is brought up to spin.
- PXT progressively increases twist from a very slow breech rate to the final muzzle rate so the bullet is eased into rotation rather than forced abruptly into the lands.
- Company testing and partner trials report large gains: reductions in rifling lead angle of 95–98%, about 30% lower engraving force, 30–100% longer barrel life, and 20–50% better shot-to-shot consistency.
- PROOF has begun selling PXT as barrel blanks, AR barrels, select pre-fits and in two complete Elevation FDX rifle platforms with published starting MSRPs and dealer availability.
- The technology grew from medium-caliber cannon research and has been tested with OEMs, IWTSD and under a CRADA with the Army Research Laboratory, but independent validation and ammunition-level optimization remain outstanding and will determine operational gains.