The bonded front core and progressively tapered jacket produce controlled expansion and energy release. The design stops expansion at its optimum point and maintains a longer shank for deep penetration. Series Safari Cape-Shok Caliber 416 Rigby Application Hunting Bullet Type Swift A Frame Bullet Weight 400 gr Muzzle Energy 4905 ft lbs Boxes Per Case 10 Rounds Per Box 20 Casing Material Nickel-Plated Brass Muzzle Velocity 2350 fps Unit Of Measure box