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
8×50mmR Lebel
The 8×50mmR Lebel (8mm Lebel) (designated as the 8 × 51 R Lebel by the C.I.P.) rifle Cartridge (firearms), cartridge was the first smokeless powder cartridge to be made and adopted by any country. It was introduced by France in 1886. Formed by ...
, although it itself was soon replaced with the
7.5×54mm French round, that served the French for decades to come until France, along with the rest of
NATO
The North Atlantic Treaty Organization (NATO ; , OTAN), also called the North Atlantic Alliance, is an intergovernmental organization, intergovernmental Transnationalism, transnational military alliance of 32 Member states of NATO, member s ...
, adopted the standard NATO calibers,
5.56×45mm NATO
The 5.56×45mm NATO (official NATO nomenclature 5.56 NATO, commonly pronounced "five-five-six") is a rimless bottlenecked centerfire intermediate cartridge family developed in the late 1970s in Belgium by FN Herstal. It consists of the SS109, ...
and
7.62×51mm NATO
The 7.62×51mm NATO (official NATO nomenclature 7.62 NATO) is a rimless, straight walled, bottlenecked, centerfire rifle cartridge. It is a standard for small arms among NATO countries.
First developed in the 1950s, the cartridge had first be ...
.
Description
The obsolete
8mm Lebel 8 mm may refer to:
Film technology
*8 mm film, a motion picture film format
** Super 8 film
** Single-8 film
* 8 mm video format, three related videocassette formats
Firearms
* 8 mm caliber, firearmm cartridges
** 7.92×57mm Mauser, designated ...
round was powerful and accurate but due to its shape it was particularly poorly suited to automatic weapons with large-capacity magazines. The only weapon ever fielded in 7.5 mm MAS mod. 1924 was the ''
fusil-mitrailleur mle 1924'', a
light machinegun based on the
B.A.R action. Early examples of the FM 24 proved prone to various failures; additionally, it was possible to mistake the new 7.5×57mm for a German
7.92×57mm Mauser round. The Mauser round would chamber and fire, but the larger bullet would not fit in the barrel and could cause a catastrophic malfunction. The new 7.5 mm round was abandoned and replaced by the
7.5×54mm MAS mod. 1929.
See also
*
Table of handgun and rifle cartridges
This is a table of selected pistol/submachine gun and rifle/machine gun cartridges by common name. Data values are the highest found for the cartridge, and might not occur in the same load (e.g. the highest muzzle energy might not be in the same ...
References
{{DEFAULTSORT:7.5x57mm MAS
Pistol and rifle cartridges