Pow'RBall ammunition is regarded as smoke and mirrors by some defensive-handgun analysts. Nothing could be further from the truth. The ball in the end of the bullet used in Pow'RBall ammo is there to ensure reliable feeding and to initiate violent expansion. And that's exactly what it does. This load—even when fired from a Diamondback DB9 with a 3-inch barrel—created massive internal damage inside the gelatin block and penetrated to a surprising 14 inches. The high velocity obviously helps, though from an 11-ounce handgun, this load bites on both ends.