Doubletap Ammunition Target 9mm Luger 55 grain Full Metal Jacket Boat Tail 50 Rounds Rifle Ammo. This Doubletap Ammunition Ammunition features Full Metal Jacket Boat Tail (FMJBT) bullets that deliver strong stopping power flawless precision and reliability. With amazing deals every day on Ammunition and other high-quality rifle ammo from trusted brands like Doubletap Ammunition you re sure to find the best round for the hunting grounds or the range. Stock up today to save big on ammunition and other top-tier tactical hunting and outdoor gear at OpticsPlanet. Specifications for Doubletap Ammunition Target 9mm Luger 55 grain Full Metal Jacket Boat Tail Rifle Ammunition: Manufacturer: Doubletap Ammunition Caliber: 9mm Luger Number of Rounds: 50 Bullet Type: Full Metal Jacket Boat Tail (FMJBT) Bullet Weight: 55 grain Package Contents: Doubletap Ammunition Target 9mm Luger 55 grain Full Metal Jacket Boat Tail Rifle Ammunition