Winchester Lake City M193 Rifle Ammo 5.56mm 55gr FMJ 3240 fps 1000/ct case. 56mm 55gr FMJ 3240 fps: Manufacturer: Winchester Caliber: 5.56x45mm NATO Number of Rounds: 1000 Bullet Type: Full Metal Jacket (FMJ) Bullet Weight: 55 grain Cartridge Case Material: Brass Muzzle Velocity: 3240 ft/s Muzzle Energy: 1235 ft-lbs Application: Target Package Type: Case Primer Style: Centerfire Package Contents: Winchester Lake City M193 Rifle Ammunition 5.56mm 55gr FMJ 3240 fps What is Winchester Lake City M193 Rifle Ammunition 5.56mm 55gr FMJ 3240 fps good for? The manufacturer thinks that it is suitable for target.Winchester WM193KC: Lake City M193 Rifle Ammo 5.56mm 55gr FMJ 3240 fps 1000/ct case