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AUPO
9×25mm AUPO
Country of origin

Italy

Manufacturers

Fiocchi Munizioni

Designer

Fiocchi Munizioni

Year production began

1979

Year production ended

1985 (CB-M2 project shelved)

Cartridge type

Caseless

Overall length

25.53mm

Neck diameter

8.79mm

Rim diameter

9.02mm

Rim thickness

14.70mm

Primer type

Peripheral

Used by

Italy

The 9×25mm AUPO is an experimental military cartridge developed by Fiocchi Munizioni for use in the Benelli CB-M2 submachine gun.

DetailsEdit

Similar to the ubiquitous 9×19mm Parabellum in terms of ballistics and physical measurements, the 9×19mm AUPO round was advertised as caseless, but was not exactly so, as the cartridge's "case" was permanently attached to the bullet, and left the barrel together with the bullet when firing. The powder is packed in the hollow interior behind the permanently-affixed bullet with the cartridge using a ring primer built into the casing. The powder, along with the ring primer, is sealed inside with a lid of lacquer or resin.

ReferencesEdit

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