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5.56 x 45mm United States

5.56 x 45mm Blank M200E1 United States F A 7 1 profile view.5.56 x 45mm Blank M200E1 United States F A 7 1 head view.

Details

TypeBlank, M200E1
Projectile[none]
Casealuminum, roll crimp, gold anodized
Primerpercussion, flat, brass, ring crimp, red annulus
HeadstampF A 7 1
NotesLot FAP-7-72. Cases from this experimental lot were anodized after the case mouth was rounded.