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Cartridge Details
20 x 139mm HS820
United States
Details
Type
Dummy, FAT 226
Projectile
steel, aluminum windscreen, blue, 1 copper driving band
Case
brass, choke crimp
Markings:
(black marker) 20MM FAT 226 DUMMY
Primer
percussion, flat, brass, ring crimp
Headstamp
[none]