Sierra Bullets 7mm Caliber 197 Grain HPBT MatchKing Rifle Bullets. Shooters around the world will appreciate the accuracy and extreme long range performance of our new 7mm 197 grain HPBT (#1997). 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 BlitzKing or Varminter counterparts. This bullet requires a barrel twist rate of 1x7.5? or faster. Specifications for Sierra Bullets 7mm Caliber 197 Grain HPBT MatchKing Rifle Bullets: Manufacturer: Sierra Bullets Bullet Type: Boat Tail Hollow Point (BTHP) Hollow Point (HP) Bullet Weight: 197 grain Projectile Caliber: .284 Caliber Sectional Density: 0.349 Bullet Quantity: 100 Bullet Barrel Twist Rate: 1-7.5 Country of Origin: USA Fabric/Material: Copper Package Contents: Sierra Bullets 1997 MatchKing 7mm .284 197 GR Hollow Point Boat Tail (HPBT) 100 Box Sierra Bullets 1997 MatchKing 7mm .284 197 GR Hollow Point Boat Tail HPBT 100 Box