ADI World Class Match Sierra .223 Remington 69 grain Boat Tail Hollow Point 20 Rounds Rifle Ammo. ADI is trusted by the worlds most discerning Marksman. The Sierra BlitzKing selected for this load is designed for explosive expansion in varmints and small game with the accuracy of the MatchKing bullets. The nose of the Sierra BlitzKing projectile is made of an acetyl resin compound" and the sharp tip improves ballistic coefficient over small hollow point projectiles. The 55gr variant used in this cartridge features a boat tail to further increase the ballistic coefficient compared to flat-base design bullets of the same weight. Specifications for ADI World Class Match Sierra .223 Remington 69 grain Boat Tail Hollow Point Rifle Ammunition: Manufacturer: ADI World Class Caliber: .223 Remington Number of Rounds: 20 Bullet Type: Boat Tail Hollow Point (BTHP) Bullet Weight: 69 grain Features of ADI World Class Match Sierra .223 Remington 69 grain Boat Tail Hollow Point Rifle Ammunition: Acetyl Resin Ballistic Tip Package Contents: ADI World Class Match Sierra .223 Remington 69 grain Boat Tail Hollow Point Rifle Ammunition