In brief: A lot of movies suggest that diving into water is a good way to escape gunfire, but that's no protection against new bullets being tested by the US military that can move swiftly and at great length through liquids.
Created by Virginia’s DSG Technologies, the tungsten-tipped bullet works by creating a gas bubble as it moves through water. As Defense One reports, this massively reduces the amount of drag—a supercavitation effect that’s also used in torpedos and some boats. As standard









