Lapua .308 Winchester 123 Grain Full Metal Jacket FMJ Brass Cased Rifle Ammo 20 Rounds. 308 Winchester is one of the most popular centerfire rifle calibers today. Lapua's .308 Win ammo is an excellent choice when you want a cartridge that is sure to perform across a range of disciplines in either competition shooting or hunting. This .308 Win. round is loaded with the 80 gram Full Metal Jacket (FMJ) bullet. Specifications for Lapua .308 Winchester 123 Grain Full Metal Jacket (FMJ) Brass Cased Rifle Ammunition: Manufacturer: Lapua Caliber: .308 Winchester Number of Rounds: 20 Bullet Type: Full Metal Jacket (FMJ) Bullet Weight: 123 grain Cartridge Case Material: Brass Muzzle Velocity: 2936 ft/s Application: Target Package Contents: Lapua .308 Winchester 123 Grain Full Metal Jacket (FMJ) Brass Cased Rifle Ammunition What is Lapua .308 Winchester 123 Grain Full Metal Jacket (FMJ) Brass Cased Rifle Ammunition good for? The manufacturer says that it is suitable for target.Lapua 4317527: .308 Winchester 123 Grain Full Metal Jacket FMJ Brass Cased Rifle Ammo 20 Rounds