7.5×54mm French
French rifle cartridge / From Wikipedia, the free encyclopedia
Dear Wikiwand AI, let's keep it short by simply answering these key questions:
Can you list the top facts and stats about 7.5×54mm French?
Summarize this article for a 10 year old
The 7.5×54mm French, 7.5 French, or 7.5 MAS (designated as the 7,5 × 54 MAS by the C.I.P.[1]) is a rimless bottlenecked rifle cartridge. It was developed by France as an update to the 7.5×57mm MAS mod. 1924 cartridge. It replaced the obsolete 8×50mmR Lebel round used during World War I, and served as the French service cartridge until superseded by the 5.56×45mm NATO and 7.62×51mm NATO cartridges in the 1970s and 1980s.
7.5×54mm MAS mod. 1929 | ||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Type | Rifle | |||||||||||||||||||||||
Place of origin | France | |||||||||||||||||||||||
Service history | ||||||||||||||||||||||||
In service | 1929–1990 | |||||||||||||||||||||||
Used by | France, Germany, Vietnam, Cameroon | |||||||||||||||||||||||
Wars | World War II First Indochina War Algerian War Suez Crisis Vietnam War Shaba II Anglophone Crisis | |||||||||||||||||||||||
Production history | ||||||||||||||||||||||||
Designer | MAS | |||||||||||||||||||||||
Designed | 1924 | |||||||||||||||||||||||
Variants | Balle "C", Balle "D" | |||||||||||||||||||||||
Specifications | ||||||||||||||||||||||||
Parent case | 7.5×57mm MAS mod. 1924 | |||||||||||||||||||||||
Case type | Rimless, bottleneck | |||||||||||||||||||||||
Bullet diameter | 7.84 mm (0.309 in) | |||||||||||||||||||||||
Land diameter | 7.57 mm (0.298 in) | |||||||||||||||||||||||
Neck diameter | 8.66 mm (0.341 in) | |||||||||||||||||||||||
Shoulder diameter | 11.30 mm (0.445 in) | |||||||||||||||||||||||
Base diameter | 12.25 mm (0.482 in) | |||||||||||||||||||||||
Rim diameter | 12.34 mm (0.486 in) | |||||||||||||||||||||||
Rim thickness | 1.40 mm (0.055 in) | |||||||||||||||||||||||
Case length | 54.00 mm (2.126 in) | |||||||||||||||||||||||
Overall length | 76.00 mm (2.992 in) | |||||||||||||||||||||||
Case capacity | 3.76 cm3 (58.0 gr H2O) | |||||||||||||||||||||||
Rifling twist | 270 mm (10.63 inches) | |||||||||||||||||||||||
Primer type | Berdan or Boxer Large rifle | |||||||||||||||||||||||
Maximum pressure (C.I.P.) | 380.00 MPa (55,114 psi) | |||||||||||||||||||||||
Ballistic performance | ||||||||||||||||||||||||
| ||||||||||||||||||||||||
Test barrel length: 574 mm (22.60 in) and 600 mm (23.62 in) Source(s): C.I.P. [1] SurplusRifle.com [2]/Cartridges of the World [3] |
The 7.5×54mm French MAS has an uncommon 12.39 mm (0.488 in) breech and breechface diameter, and it has ballistics comparable to the 7.62×51mm NATO/.308 Winchester round.[1] The 7.5 French cartridge is somewhat similar in appearance to the slightly longer and thicker 7.5×55mm Swiss GP11 round but users should never try to interchange the two rounds.