Winchester Ammo Centerfire Rifle Reloading 7.62mm .308 147 Gr Full Metal Jacket. 62mm .308 147 gr Full Metal Jacket - Bullets are custom-designed and manufactured to precise specifications to deliver specific on-target performance characteristics. These characteristics vary depending on bullet design. Winchester carries a variety of component bullets for both centerfire rifle and handgun ammunition. Specifications for Winchester Ammo Centerfire Rifle Reloading 7.62mm .308 147 Gr Full Metal Jacket WB762147D: Manufacturer: Winchester Bullet Type: Full Metal Jacket Boat Tail (FMJBT) Full Metal Jacket (FMJ) Caliber: .308 Winchester Bullet Weight: 147 grain Projectile Caliber: .308 Caliber Core Material: Lead Fabric/Material: Copper Winchester Ammo Centerfire Rifle Reloading 7.62mm .308 147 Gr Full Metal Jacket WB762147D