Dictionary
throw' weight"
the lifting power, or payload maximum, of a ballistic missile exclusive of the weight of the rocket itself, and including the weight of the warhead or warheads and of guidance and penetration systems; ballistic delivery power:
larger Soviet missiles with a throw weight of up to 20 megatons. Also,throw'weight".Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.