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Not marked 20mm cartridge
- Thread starter soldier66
- Start date
Tony Williams
Well-Known Member
To add a bit more info: The M55 was the "ball" (practice) loading of this ammo, the M56 was the standard HEI, the M51 was a dummy, the M53 was an API.
The M50 series was replaced in USAF service from the late 1980s by the PGU-28 SAPHEI and similar ammo, which have more aerodynamically shaped projectiles (the PGU-28 being a Nammo Raufoss Multipurpose type). These still use the M103 case, as do the APDS series for the Phalanx naval CIWS.
The M50 series was replaced in USAF service from the late 1980s by the PGU-28 SAPHEI and similar ammo, which have more aerodynamically shaped projectiles (the PGU-28 being a Nammo Raufoss Multipurpose type). These still use the M103 case, as do the APDS series for the Phalanx naval CIWS.
hasag
Well-Known Member
20x102 if no ink markings on the side pod impossible to know provenance
Caliber U.S. origin but used and manufactured in many countries.
http://cartucheria.es/20x102.html
Caliber U.S. origin but used and manufactured in many countries.
http://cartucheria.es/20x102.html