a multiple repetitive resonant railgun power supply provides energy for repetitively propelling projectiles from a pair of parallel rails . a plurality of serially connected paired parallel rails are powered by similar power supplies . each supply comprises an energy storage capacitor , a storage inductor to form a resonant circuit with the energy storage capacitor and a magnetic switch to transfer energy between the resonant circuit and the pair of parallel rails for the propelling of projectiles . the multiple serial operation permits relatively small energy components to deliver overall relatively large amounts of energy to the projectiles being propelled .