X-Treme Bullets Pistol Bullets .458 Caliber 160 Grain Round Nose Flat Point 250 Bullets 250 450. 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 .458 Caliber 160 Grain Round Nose Flat Point: Manufacturer: X-Treme Bullets Gun Type: Pistol Bullet Type: Round Nose Flat Point (RNFP) Caliber: .458 SOCOM Bullet Weight: 160 grain Diameter: 0.452 in Projectile Caliber: .458 Caliber Bullet Quantity: 250 Bullet Package Contents: X-Treme Bullets Pistol Bullets .458 Caliber 160 Grain Round Nose Flat Point X-Treme Bullets XB450RF260B250: Pistol Bullets .458 Caliber 160 Grain Round Nose Flat Point 250 Bullets 250 450