A military small & medium caliber ammunition collection

20 x 102mm United States

20 x 102mm HEI M56A3 United States  profile view.20 x 102mm HEI M56A3 United States  head view.


TypeHEI, M56A3
Projectilesteel, steel fuze, yellow with red band, 1 copper driving band Projectile Markings: (black ink) 20MM HEI M56A3 OL-84L0045005 RNO84E010-007 M56A4
Casebrass, roll crimp Markings: (black ink) 20MM M103 ACN84J004-910
Primerelectric, flat, brass, ring crimp
NotesProjectile is empty and fuze has been inerted.