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Military


M57 120mm High Explosive Cartridge

The M57 High Explosive Cartridge is designed for use with the M120 120mm Towed Mortar System and is used against personnel, bunker and light materiel targets. The steel projectile is loaded with TNT explosive. The M57 is equipped with the M935 Point Detonating Fuze which functions in the Impact mode. The M57 was procured by the U.S. Army in limited quantities as a foreign (Israel) nondevelopmental item.

The M57 consists of the following major components:

  • Projectile Body Assembly
  • Propelling Charges
  • Ignition Cartridge
  • Fin Assembly
  • M935 Point Detonating Fuze

Propelling
Charge Zone
Muzzle
Velocity
Minimum
Range
Maximum
Range
0108 m/s200 m1000 m
1137 m/s500 m1700 m
2164 m/s700 m2400 m
4212 m/s1300 m3800 m
6255 m/s2300 m5100 m
8292 m/s3300 m6300 m
10320 m/s3500 m7200 m

Maximum Rate of Fire.........15 rounds/min (first minute)
Sustained Rate of Fire..........4 rounds/min
Cartridge Weight..........13.27 kg (29.2 lb)



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Page last modified: 07-07-2011 02:52:06 ZULU