X-Treme Bullets .40 S&W 180 Grain Hollow Point Pistol Ammo 500 Rounds. X-Treme Bullets process starts with a lead billet that is extruded into wire. The lead wire is then swaged into a core. The cores are copper plated then restruck once more. Though not common in the industry this restrike process produces a bullet that is more uniform with a more precise diameter and a smoother finish for a better shooting and better looking bullet. Specifications for X-Treme Bullets Pistol Bullets .40 S&W 180 Grain Hollow Point: Manufacturer: X-Treme Bullets Gun Type: Pistol Bullet Type: Hollow Point (HP) Caliber: .40 S&W Cartridge Type: Brass Bullet Weight: 180 grain Diameter: 0.4 in Core Material: Lead Projectile Caliber: .40 Caliber Bullet Quantity: 500 Bullet Package Contents: X-Treme Bullets Pistol Bullets .40 S&W 180 Grain Hollow Point X-Treme Bullets XB40H180B500: .40 S&W 180 Grain Hollow Point Pistol Ammo 500 Rounds