Abstract: A projectile for a darting gun, comprising a front head housing a front ignition plunger arranged for axial rearward movement when the tip of the projectile strikes a target, the ignition plunger communicating with a rearwardly extending striker means which in an uninfluenced position of the ignition plunger terminates at a first predetermined distance from an ignition time delay element, the ignition time element when triggered by the striker means being arranged to fire a detonator which in turn detonates a main charge arranged in a tubular body attached to the rear of the front head, a safeguarding means which can be influenced by an outer mechanical force, the safeguarding means in a first position holding the ignition time delay element at a second predetermined distance from the detonator, and in a second position allowing the ignition time delay element to travel the second predetermined distance so as to be brought in close enough communication with the detonator for the detonation thereof when said p