Analyst Note:
The PF69-40 HEI warhead contains approximately 900 pieces of spherical steel fragmentation (‘ball bearings’) as well as 2,000–3,000 incendiary pellets that scatter over a 15 m radius on detonation. (ARES)
Constricting openings in rocket motors that increase the velocity and pressure of exiting gases, sometimes directing these to impart spin to the munition
