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 500 Nitro Express Application Hunting Bullet Type Swift A Frame Bullet Weight 570 gr Muzzle Energy 5581 ft lbs Boxes Per Case 10 Rounds Per Box 20 Casing Material Nickel-Plated Brass Muzzle Velocity 2100 fps Unit Of Measure box