Sierra Bullets Tipped GameKing Rifle Bullets 6.5mm/.264 Caliber 140gr. 500 Bullets/Box. Our new 140gr Tipped GameKing is designed for hunting from todays newer cartridges using a 1-8 twist. Expansion is enhanced by the tip and penetration is regulated by the thick jacket giving spectacular results on a wide variety of game animals. Game from the size of whitetail to possibly elk and a multiple of bears in-between could be easily taken. This bullet requires a barrel twist rate of 18 or faster. Specifications for Sierra Bullets Tipped GameKing Rifle Bullets 6.5mm/.264 Caliber 140gr.: Manufacturer: Sierra Bullets Gun Type: Rifle Bullet Type: Flat Base Tipped (FBT) Bullet Weight: 140 grain Projectile Caliber: .264 Caliber Country of Origin: USA Package Contents: Sierra Bullets Tipped GameKing Rifle Bullets 6.5mm/.264 Caliber 140gr. Sierra Bullets 4340C: Tipped GameKing Rifle Bullets 6.5mm/.264 Caliber 140gr. 500 Bullets/Box