Featuring Sierra Matching HPBT bullet. FURY Hybrid Case Technology allows for increased muzzle velocity and greater energy than traditional brass cases. SIG FURY Hybrid case ammunition outperforms standard ammunition in a similar size rifle, with less bullet drop and increased energy on target. Hybrid Case Technology was developed for the U.S. Military’s Next Generation Weapon Systems. FEATURES: SIG FURY Hybrid Case Ammunition outperforms traditional brass case ammunition with increased velocity, less bullet drop, and increased energy on target. Legendary Sierra MatchKing HPBT specifically developed to perform in the higher pressure 277 SIG FURY Hybrid Match round. Delivers magnum performance in a standard short action rifle.