us navy rail gun

Would this use MST Tec?

Rather than relying on a explosion to fire a projectile, it uses an electomagnetic current to accelerate a non-explosive bullet at several times the speed of sound. The conductive projectile zips along a set of electrically charged parallel rails and out of the barrel at speeds up to Mach 7.

http://www.foxnews.com/scitech/2011/11/02/us-navys-futuristic-railgun-passes-projectile-milestone/