OVERVIEW: 122mm Multiple Launch Rocket System (MLRS) rockets are designed to deliver rapid, area-saturation firepower against troop concentrations, light vehicles, artillery positions, and supply points. These rockets offer both direct and indirect fire capabilities with high mobility and rapid salvos for battlefield suppression.

DETAILS: 122mm rockets are typically associated with systems like the Soviet BM-21 "Grad" and its many derivatives. Each rocket is unguided and usually stabilized by fins or spin to improve accuracy. Warhead types include high-explosive fragmentation (HE-FRAG), incendiary, smoke, or submunitions. A standard 122mm HE-FRAG rocket contains a steel casing filled with explosives and preformed fragments for wide-area lethal effects. Rockets are generally launched from 40-round truck-mounted systems, providing rapid strike capability and quick relocation to avoid counter-battery fire. Range varies by rocket type, typically between 15 and 40 kilometers.

ROLE SUMMARY:
Category: Artillery Rocket Ammunition
Primary Use: Area suppression / Anti-personnel / Anti-material
Function: Indirect fire with explosive, fragmentation, or submunition payloads
Platform: Multiple Launch Rocket Systems (e.g., BM-21 Grad)
Integration: Compatible with 122mm MLRS launchers and adapted platforms

SOURCE:
Janes Ammunition Handbook
https://en.wikipedia.org/wiki/BM-21_Grad_Grad