Oh they'll work. A 1000kg object(The throw weight of a Minuteman III ICBM is 1150kg for comparative purposes) impacting at 3kps(mach 8.7@SL) would release 4.5
million megajoules(4,500 gigajoules) of energy on impact.
http://www.divine-salamis.com/phpBB/...c+conventional
Read my comments on the above link, they should be pretty educational to anyone interested in the subject of high velocity impacts.
