Sierra Bullets .338 Cal 300gr 500 Ct This bullet is designed in the MatchKing tradition and intended for rifles shooting magnum cartridges, such as the 338 Winchester Magnum and 338-378 Weatherby. The huge 300 grain match bullet is a trendsetter. While they are recognized around the world for record-setting accuracy, MatchKing and Tipped MatchKing bullets are not recommended for most hunting applications. Although MatchKing and Tipped MatchKing bullets are commonly used for varmint hunting, their design will not provide the same reliable explosive expansion at equivalent velocities in varmints compared to their lightly jacketed Hornet, Blitz or Varminter counterparts. Please Note!! This bullet requires at least a 1x10" twist barrel. Dia. (inches) Weight (grains) Sectional Density Ballistic Coefficients and Velocity Ranges 0.338 300 .375 .768 @ 2300 fps and above .760 between 2300 and 1800 fps .750 @ 1800 fps and below The products offered for sale on this page can expose you to chemicals, including Lead, which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information, go to www.P65Warnings.ca.gov.