Sierra Bullets .30 Caliber 230 Grain HPBT MatchKing Rifle Bullets 500 Bullets. A sleek 27 caliber elongated ogive and a final meplat reducing operation (pointing) provide an increased ballistic coefficient for optimal wind resistance and velocity retention. To ensure precise bullet to bore alignment a unique bearing surface to ogive junction uses the same 1.5 degree angle commonly found in many match rifle chamber throats. 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. This bullet requires a barrel twist rate of 1x8? or faster. Ballistic Coefficients and Velocity Ranges : .800 at1880 fps and above .780 between 1600 and 1880 fps .740 at 1600 and below Specifications for Sierra Bullets .30 Caliber 230 Grain HPBT MatchKing Rifle Bullets: Manufacturer: Sierra Bullets Gun Type: Rifle Bullet Type: Boat Tail Hollow Point (BTHP) Hollow Point (HP) Bullet Weight: 230 grain Projectile Caliber: .30 Caliber Diameter: 0.308 in Sectional Density: 0.376 Condition: New Barrel Twist Rate: 1-8 Country of Origin: USA Package Contents: Sierra Bullets MatchKing 230 gr. .30 Cal HPBT Rifle Bullets Sierra Bullets 2251C: MatchKing Rifle Bullets .30 Caliber Hollow Point Boat Tail HPBT 230 grain 500 Rounds/Box