US missiles are about to have a bigger bang for the buck. The U.S. Office of Naval Research says it successfully tested a new type of explosive material that makes blasts five times stronger than those made by existing military weapons and are much more precise, the BBC reports. The material, which mixes metals and polymers, is also expected to be cost-saving because it's more effective in eliminating its target. The High-Density Reactive Materials increase the chances of what military scientists call a "catastrophic kill" and are expected to decrease the number of innocent casualties. The project was in the works for five years.