X-Treme Bullets .50 Caliber 325 Grain Round Nose Flat Point Pistol Ammo 250 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 .50 Caliber 325 Grain Round Nose Flat Point: Manufacturer: X-Treme Bullets Gun Type: Pistol Bullet Type: Round Nose Flat Point (RNFP) Cartridge Type: Brass Bullet Weight: 325 grain Quantity: 250 Diameter: 0.5 in Core Material: Lead Jacket Material: Copper Projectile Caliber: .50 Caliber Bullet Quantity: 250 Bullet Package Contents: X-Treme Bullets Pistol Bullets .50 Caliber 325 Grain Round Nose Flat Point X-Treme Bullets XB50RF325B250: .50 Caliber 325 Grain Round Nose Flat Point Pistol Ammo 250 Rounds