head cap 44 to occur only in its frontal spherical portion so that the form stable rear portion of the head cap 44 which is essentially cylindrical always produces the minimum stand off 48 for optimum jet formation from the liner 42 the ignition and safety device according to the invention is accommodated in the rear housing 18 and will now be described and explained in detail turning now to fig3 the supporting element of the ignition and safety device is formed by a fuse housing 50 which is fixed in the rear housing 18 by means of a base plate 52 and a spacer disk 54 both the base plate 52 and the spacer disk 54 are provided with a central bore in which a booster or transfer charge 56 is disposed to establish a firing connection between the detonator charge primer and the explosive charge 40 of the projectile in a frontal space 58 of the fuse housing 50 a detonator carrier 60 is disposed which is pivotal transversely to the longitudinal axis of the projectile also referring to fig4 the detonator carrier 60 is provided with a bore 62 in which in the safety position the tip 64 of a firing pin 66 is disposed as part of a restraining safety mechanism the detonator carrier includes a toothed wheel segment 68 and in order to reduce structural height and increase the effect of centrifugal forces an eccentric component 70 made for example of a heavy metal such as lead or tungsten radially adjacent the detonator carrier 60 as related to the longitudinal projectile axis there is provided a spin.