PMC Ammunition X-Tac 5.56x45mm NATO 55 Grain Full Metal Jacket Rifle Ammo Metal Box 840 Rounds 1102741. 56 NATO Rifle Ammo is designed for shooters who demand reliability accuracy and high-performance. Each round features a 55-grain Full Metal Jacket Boat Tail (FMJ-BT) bullet ensuring consistent ballistic performance. The brass-cased cartridges deliver a muzzle velocity of 3270 fps and muzzle energy of 1306 lb/ft making them ideal for range training practice and protection. This bulk pack includes 840 rounds and comes in a durable metal ammo can with a bandoleer making it perfect for extended training sessions or long-term storage. Specifications for PMC Ammunition X-Tac Rifle Ammo Metal Box: Manufacturer: PMC Ammunition Caliber: 5.56x45mm NATO Number of Rounds: 840 Bullet Type: Full Metal Jacket (FMJ) Bullet Weight: 55 grain Cartridge Case Material: Brass Application: Medium Game Small Game Primer Style: Centerfire Color: Green Features of PMC Ammunition X-Tac Rifle Ammo Metal Box: 5.56x45mm NATO chambering 55-grain Full Metal Jacket Boat Tail (FMJ-BT) Brass casing Muzzle velocity: 3270 fps Muzzle energy: 1306 lb/ft Suitable for range practice and protection 840-round bulk pack Includes bandoleer and metal ammo can Package Contents: PMC Ammunition X-Tac Rifle Ammo Metal Box What is PMC Ammunition X-Tac Rifle Ammo Metal Box good for? The manufacturer suggests that it is best for small game medium game.