Vz 52/57
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The Vz 52/57 rifle is a variation of the Czechoslovak Vz 52 chambered for the Soviet 7.62 x 39 mm M43 cartridge.
The original Vz 52 was chambered for the unique 7.62 x 45mm M52 cartridge (also known as 7.62 x 45 Czech) but Czechoslovakia gave in to Soviet pressure to adopt its cartridge.
The Vz 52/57 is identical except for its barrel and its magazines. Vz 52 magazines can be used in Vz 52/57s but they do not feed reliably.
The Vz 52/57 was replaced by the Vz 58.
