The entire rocket is smaller than the (smallest) warhead of an ATACMS; for a missile, you need to be able to deliver a useful payload at range, range without th

The entire rocket is smaller than the (smallest) warhead of an ATACMS; for a missile, you need to be able to deliver a useful payload at range, range without that is meaningless. (Also, DoD has plenty of missiles with a longer range than the ATACMS.)