The Kinetic Energy Projectile would be a tungsten warhead that moves at three times the speed of sound, destroying anything in its path.
Were the United States to go to war with Russia, both sides could draw on deadly weapons that the world has never seen on a battlefield. On the Russian side, there are new and smaller tactical nuclear weapons. To counter them, the U.S. Army is taking another look at a “devastating” weapon, one first tested by the Air Force and Lawrence Livermore National Laboratory in 2013, the Kinetic Energy Projectile, or KEP, a tungsten-based charge moving at three times the speed of sound that can destroy anything in its path.
“Think of it as a big shotgun shell,” Maj. Gen. William Hix, the Army’s director of strategy, plans & policy, said a few weeks ago at the Booz Allen Hamilton Direct Energy Summit. But unlike a shotgun shell, Hix said, the KEP moves at incredible speeds of “Mach 3 to Mach 6.”
Randy Simpson, a weapons programs manager at Lawrence Livermore National Lab, explains that kinetic energy projectiles are warheads that “take advantage of high terminal speeds to deliver much more energy onto a target than the chemical explosives they carry would deliver alone.”
http://www.defenseone.com/technology/2017/04/us-army-exploring-devastating-new-weapon-event-war-russia/136943/?oref=d-channelriver