20 mm HEI (High Explosive Incendiary)
Artillery Ammunition - 20mm

20 mm HEI (High Explosive Incendiary)
System:M61A, M39, M50, M61A1, M168, M197, M621
CategoryArtillery Ammunition - 20mm
20mm High Explosive Incendiary ammunition for anti-materiel and anti-aircraft applications. Compatible with M61A, M39, M50, M61A1, M168, M197, M621 systems.
Technical specifications
| projectile weight | ~100 g |
| muzzle velocity | 1,050 m/s |
| projectile diameter | 21.03-0.10 mm |
| safety temperature | -30°C to +51°C |