 The propellant cartridges are stowed on the left of the breech; and the cartridge loader completes the loading action, including the signal to close the breech.For the first round, the loading tray is lifted hydraulically for subsequent rounds of a mission since the gun, in running out, moves past a mechanical catch and lifts the loading tray with it.The SP70 has a burst-fire capability of three rounds in 10 seconds, which gives it an enormously powerful punch the "rapid" rate will give at least six rounds per minute until the ammunition in the magazine is expended.