The OP is being humorous, I suspect. Nothing wrong with a good joke now and again. In my experience (my father worked on several weapon systems programs and nu

The OP is being humorous, I suspect. Nothing wrong with a good joke now and again. In my experience (my father worked on several weapon systems programs and numerous other things, including somewhat more recently SM-3), I don't recall them being officially referred to as anything other than "kill vehicle" or "kinetic kill vehicle." Usually it was just "warhead" or "missile." Besides, once you hit about Mach 6, your need for a warhead greatly diminishes.