Winchester Ammo Centerfire Handgun Reloading 40 S&W .400 180 Grain TCFMJ 100 Bullets. 400 180 gr Full Metal Jack - 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 Handgun Reloading 40 S&W .400 180 Grain TCFMJ: Manufacturer: Winchester Bullet Type: Full Metal Jacket (FMJ) Caliber: .40 S&W Bullet Weight: 180 grain Diameter: 0.4 in Core Material: Lead Bullet Quantity: 100 Bullet Fabric/Material: Copper Package Contents: Winchester Ammo Centerfire Handgun Reloading 40 S&W .400 180 Gr Full Metal Jack WB40TC180X Winchester WB40TC180X: Ammo Centerfire Handgun Reloading 40 S&W .400 180 Grain TCFMJ 100 Bullets