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The Zastava M55, also designated 20/3-mm-M55, is a Yugoslavian/Serbian 20mm triple-barreled automatic anti-aircraft gun developed in 1955 and produced by Crvena Zastava (now Zastava Arms company) in Kragujevac, Serbia, for Yugoslav People's Army use and also for the export market.
20 mm caliber is a specific size of popular autocannon ammunition. The dividing line between smaller-caliber weapons, commonly called " guns ", from larger-caliber " cannons " (e.g. machine gun vs. autocannon ), is conventionally taken to be the 20 mm round, the smallest caliber of autocannon.
A 1974 postage stamp encouraging people to use the ZIP Code on letters and parcels. A ZIP Code (an acronym for Zone Improvement Plan [1]) is a system of postal codes used by the United States Postal Service (USPS).
4 mm» This is a list of firearm cartridges which have bullets in the 3 millimetres (0.12 in) to 3.99 millimetres (0.157 in) caliber range. All measurements are in mm (in).
The M940 MPT-SD (multi-purpose tracer, self-destruct) shell is a 20×102 mm round produced by General Dynamics primarily for an anti-aircraft role. It has a range of over 2,000 metres (6,600 ft). It has a range of over 2,000 metres (6,600 ft).
SD g/mm 2 is the sectional density in grams per square millimeters; m g is the mass of the projectile in grams; d mm is the diameter of the projectile in millimeters; For example, a small arms bullet with a mass of 10.4 grams (160 gr) and having a diameter of 6.70 mm (0.264 in) has a sectional density of: 4 · 10.4 / (π·6.7 2) = 0.295 g/mm 2
This is a list of firearm cartridges which have bullets in the 4 millimetres (0.16 in) to 4.99 millimetres (0.196 in) caliber range. All measurements are in mm (in). Rimfire cartridges
The 4.25mm Liliput is a centerfire cartridge originally produced in Austria for self-loading pocket pistols made by Erika before World War I. In 1920 the Liliput pistol was designed by August Menz of Suhl to use the cartridge.