Sierra Bullets MatchKing Rifle Bullets .338 Caliber Hollow Point Boat Tail/HPBT 300 grain 500 Bullets/Box. 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 The #9300 bullet requires at least a 110in twist barrel. Specifications for Sierra Bullets MatchKing 300 gr. .338 Cal HPBT Rifle Bullets 500 Count: Manufacturer: Sierra Bullets Gun Type: Rifle Bullet Type: Boat Tail Hollow Point (BTHP) Hollow Point (HP) Bullet Weight: 300 grain Projectile Caliber: .338 Caliber Diameter: 0.338 in Sectional Density: 0.375 Bullet Quantity: 500 Bullet Country of Origin: USA Package Contents: Sierra Bullets MatchKing 300 gr. .338 Cal HPBT Rifle Bullets 500 Count Sierra Bullets 9300: MatchKing Rifle Bullets .338 Caliber Hollow Point Boat Tail/HPBT 300 grain 500 Bullets/Box