9x21 blank, headstamp "AMA 66"

Danish 9x21 ?

image

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These are for SMGs with special blank barrels. Cases are extended to prevent that a chambered (life) 9x19 can be fired in such a barrel.

Most of us classify this as a 9 mm Parabellum blank, despite the longer case-profile length since the caliber of the gun they are used in, with the normal barrel, is 9 x 19 mm.

john Moss

http://www.arma-dania.dk/public/timeline/_ad_patroner_view.php?editid1=90

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Article on the SMG itself

Never seen that with a drum mag!
All we ever saw was 36 round sticks.
If you incerted a D cell behind the spring it would empty all rounds in no time flat :-)
They knew the sound and there would be hell to pay.