This electromagnetic railgun uses pure electricity to hurl a solid projectile to nearly Mach 7 in just a split second. At those speeds, it doesn’t need traditional propellants—the projectile’s sheer kinetic energy becomes the weapon. Railguns fire by sending massive electric current through two metal rails. When a conductive round closes the circuit, a powerful magnetic field blasts it forward with millions of watts of instant energy. The result is a silent, ultra-fast shot without any gunpowder