Sellier & Bellot 7.62x51 200 Grain Full Metal Jacket Subsonic Rifle Ammo 20 Rounds. Also a excellent home defense round. Specifications for Sellier & Bellot 7.62x51 200 Grain Full Metal Jacket Subsonic Rifle Ammunition: Manufacturer: Sellier & Bellot Caliber: 7.62x51mm NATO Number of Rounds: 20 Bullet Type: Full Metal Jacket (FMJ) Bullet Weight: 200 grain Cartridge Case Material: Brass Muzzle Velocity: 1030 ft/s Muzzle Energy: 471 ft-lbs Application: Hunting Package Type: Box Included Accessories: None Primer Style: Centerfire Sectional Density: 0.301 G1 Ballistic Coefficient: 0.558 G7 Ballistic Coefficient: 0.242 Lead Free: No Case Material: Brass Package Contents: Sellier & Bellot 7.62x51 200 Grain Full Metal Jacket Subsonic Rifle Ammunition What is Sellier & Bellot 7.62x51 200 Grain Full Metal Jacket Subsonic Rifle Ammunition good for? The manufacturer says that it is best for hunting.Sellier & Bellot SB762SUBB: 7.62x51 200 Grain Full Metal Jacket Subsonic Rifle Ammo 20 Rounds