1. A FUZE FOR EXPLOSIVE MISSILES COMPRISING, IN COMBINATION, A MAIN BODY MEMBER HAVING A LONGITUDINAL AXIS COINCIDENT WITH THE LONGITUDINAL AXIS OF A MISSILE ASSOCIATED THEREWITH, SAID MAIN BODY MEMBER DEFINING A FORWARDLY OPENING NOSE COMPARTMENT, AN IMPACT MEMBER SLIDABLY SUPPORTED WITHIN SAID COMPARTMENT HAVING A FORWARDLY FACING OUTWARDLY EXPOSED IMPACT SURFACE FOR ABUTMENT WITH ALL CONFRONTED OBJECTS, THE OUTER EXTREMITY OF SAID IMPACT MEMBER CIRCUMSCRIBING AN AREA OF SUBSTANTIALLY GREATER AREA THAN SAID OUTWARDLY EXPOSED IMPACT SURFACE AREA DEFINED THEREBY, WHEREBY ENGAGEMENT OF SAID IMPACT SURFACE WITH OBJECTS HAVING AN ABUTMENT SURFACE AT LEAST AS LARGE AS SAID CIRCUMSCRIBED AREA OF SAID IMPACT MEMBER TRANSMITS A SUBSTANTIALLY GREATER FORCE THAN ENGAGEMENT OF SAID IMPACT SURFACE WITH OBJECTS OF SMALLER SIZE THAN SAID CIRCUMSCRIBED AREA OF SAID IMPACT MEMBER.