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20 x 110mm HS United States

20 x 110mm HS Fired United States STON 1952 20MM M21A1 profile view.20 x 110mm HS Fired United States STON 1952 20MM M21A1 head view.

Details

TypeFired
Projectile[none]
Casebrass, knurled choke crimp
Primerelectric (fired), flat, brass, ring crimp
HeadstampSTON 1952 20MM M21A1
NotesSTON is Stoner Manufacturing Corp., Aurora, Illinois, USA.