Wing-Shok High Velocity Lead loads feature extra-hard copper-plated shot for tighter patterns, less feather draw and maximum penetration. If you're serious about upland bird hunting, this is your ammunition. For roosters, grouse, chucker, quail and more, you've got confidence when you shoot the best. And with up to 1500 feet per second muzzle velocity, Wing-Shok packs a punch and gets to your target faster.