Speer's Mag-Tip fluted jacket and flat tip provide better expansion at velocities lower than many spitzers, yet its heavy jacket shank allows you to shoot these at very high velocities before bullet breakup occurs. These bullets also hold together better because the Hot-Cor process eliminates the lead oxide layer that's found between the core and jacket of conventional "cold core" bullets, thus reducing core slippage. This translates into a bullet that offers the deeper penetration and greater expansion needed for taking larger game. This is not loaded ammunition.