Sierra Bullets Tipped MatchKing Rifle Bullets .284 Winchester Boat Tail Tipped BTT 160 grain 500 Bullets/Box. The major advantage of adding a tip to the bullet is the reduction of drag producing a more favorable ballistic coefficient. Another benefit is reliable feeding in magazine fed firearms. 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. The #7660 was introduced in November 2015. Specifications for Sierra Bullets Tipped MatchKing 160 gr. .284 Win BTT Rifle Bullets 500 Count: Manufacturer: Sierra Bullets Gun Type: Rifle Bullet Type: Spitzer Boat Tail (SBT) Bullet Weight: 160 grain Projectile Caliber: .284 Caliber Diameter: 0.284 in Sectional Density: 0.283 Bullet Quantity: 500 Bullet Country of Origin: USA Package Contents: Sierra Bullets Tipped MatchKing 160 gr. .284 Win BTT Rifle Bullets 500 Count Sierra Bullets 7660C: Tipped MatchKing Rifle Bullets .284 Winchester Boat Tail Tipped BTT 160 grain 500 Bullets/Box