This is a distance of only some 700 km, significanly less than the claimed range of up to 1,500 km/930 miles.The Indian Test of the Agni II IRBM was conducted 11 April 1999.At this point after 110 seconds of powered flight the warhead is then separated from the booster stage to fly on a re-entry trajectory that remains stable to its target.With the addition of GPS targeting the warhead accuracy is greatly enhanced.
Pakistan claimed that the missile had "no relevance" to China's M-11 missile, and analysis suggests that it appears to be a derivative of the North Korean Nodong design.
This was because they were not being spun-up along their longitudinal axis prior to re-entry through the atmosphere.
A warhead is much like a bullet fired from a rifle barrel.
Since the warheads are not tumbling it in fact enhances the interceptor sensor signature identification capability verses that of a tumbling warheads signature.
Equally revealing is the fact that this is the area where the Iranian Shahab-3 has repeatedly failed in flight test.