Guardians of the Stars
A electromagnetic weapon or ‘railgun’ is an electrically powered electromagnetic projectile launcher based on similar principles to the homopolar motor. A railgun comprises a pair of parallel conducting rails, along which a sliding armature is accelerated by the electromagnetic effects of a current that flows down one rail, into the armature and then back along the other rail. Railguns have long existed as experimental technology but the mass, size and cost of the required power supplies have prevented railguns from becoming practical military weapons. However, in recent years, significant efforts have been made towards their development as feasible military technology. The standard ammo for railguns are Armour-Piercing Fin-Stabilized Discarding-Sabot (APFSDS) rounds. Explosives being added to the ammo are usually considered redundant.
Another option Coilguns, or ‘Gauss guns’, are a type of projectile accelerator consisting of one or more coils used as electromagnets in the configuration of a linear motor that accelerate a ferromagnetic or conducting projectile to high velocity. In almost all coilgun configurations, the coils and the gun barrel are arranged on a common axis. Coilgun technology is most commonly used when launching fighters or missiles from spacecraft and vehicles, allowing less fuel to be required to propel the missile and they need less time to get up to speed.