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7.5 mm MAS
Type Rifle
Place of origin Flag of France.svg France
Service history
Used by Flag of France.svg France
Production history
Produced 1924 to 1929
Specifications
Parent cartridge 6.5×55mm
Case type Rimless, bottleneck
Bullet diameter 7.8 mm (0.31 in)
Neck diameter 8.6 mm (0.34 in)
Shoulder diameter 11.2 mm (0.44 in)
Base diameter 12.2 mm (0.48 in)
Rim diameter 12.2 mm (0.48 in)
Rim thickness 1.4 mm (0.055 in)
Case length 57.6 mm (2.27 in)

The 7.5×57mm MAS or 7.5×58mm mle 1924c was a short-lived French rifle cartridge that was introduced in the mid-1920s to replace the 8 mm Lebel. The "Lebel" round was powerful and accurate but due to its shape it was particularly poorly suited to automatic weapons with large-capacity magazines.[1] The only weapon ever fielded in 7.5 mm MAS mod. 1924 was the fusil-mitrailleur mle 1924, an automatic rifle sharing similarities with the B.A.R. Early examples of the FM 24 proved prone to various failures; additionally, it was possible to mistake the new 7.5 x 57 mm with a German 7.92x57mm Mauser round. The new 7.5 mm round was abandoned and replaced by the 7.5x54mm MAS mod. 1929.[2]

ReferencesEdit

  1. "7.5x54mm MAS". http://www.virdea.net/french/75.html. 
  2. Ferrard, Stéphane (1998). France 1940 l'armement terrestre. ETAI. ISBN 2-7268-8380-X. 

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