The Wing-Shok Pheasants Forever High-Velocity line of shotshells from Federal Premium come in both 12-, 16-, and 20-gauge sizes and achieve a muzzle velocity of 1,500, 1,425, and 1,350 feet per second, respectively. Simply put, these high-velocity shells are the serious bird hunter's best friend. Not only do these shells achieve an impression muzzle velocity, but they also feature a super-hard copper plating that delivers the deadly combination of decreased feather draw, tighter shot patterns, and extra-deep penetration. If you are in the market for a high-velocity shotshell for hunting grouse, quail, rooster, or other game birds, look no further than the Wing-Shok Pheasants Forever High-Velocity line of shotshells from Federal Premium.