"We'll be using a Glock 17 which is a 9 millimeter," [Firearms instructor Neil] Emanuel said.
Neil fires a round into the cap covering the cabbage. The cardboard pedestal collapses, but look again. You can actually see the bullet round bouncing off the cap. The bulletproof cap works as the round rebounds off the cap. Although it would ring your bell.
After the cabbage, the question is will the cap save your melon. The cap goes on a cantaloupe and another round is fired.The ball cap stops the round again. And here it is, a mushroomed 9 mm round stopped by the cap.
However, as far as the energy delivered to the melon, although the bullet did not penetrate it's going to leave a mark.