Remington's HyperSonic Steel is the fastest hardest hitting steel shot, period. With unprecedented 1700 fps velocity and the highest downrange pattern energies achieved, Remington's HyperSonic steel takes lethality to new heights and lengths. This level of terminal performance allows you to drop more birds with fewer shots and the farthest reaches of your abilities. Remington's HyperSonic Steel is designed to shorten lead by 11% which is the same as 8" at 40 yards. Its also designed to keep more pellets on target for quicker hits and fewer misses. HyperSonic also features the Xelerator Wad, a 2 Stage Shot/Wad System, and the new Hotter primer ignites small powder charge in a chamber moving entire payload forward slightly to control pressure.