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7.65×20mm Longue
150 px
7.65×20mm cartridge (steel case and steel jacketed bullet).
Type Rifle and Pistol
Place of origin 22x20px United States
Service history
Used by United States, France, Germany, Vietnam
Production history
Designer Remington Arms
Designed 1917
Produced 1918-1960
Specifications
Case type Rimless, straight
Bullet diameter 7.85 mm (Bad rounding hereScript error in)
Neck diameter 8.50 mm (Bad rounding hereScript error in)
Base diameter 8.53 mm (Bad rounding hereScript error in)
Rim diameter 8.50 mm (Bad rounding hereScript error in)
Case length 19.70 mm (Bad rounding hereScript error in)
Overall length 30.24 mm (Bad rounding hereScript error in)
Primer type Small pistol
Ballistic performance
Bullet weight/type Velocity Energy
77 gr (Bad rounding hereScript error g) FMJ1,132 ft/s (Bad rounding hereScript error m/s)240 ft·lbf (Bad rounding hereScript error J)

The 7.65×20mm Longue (also known as 7.65mm French Longue, 7.65 mm Long, 7.65mm MAS, 7.65×20mm, and 7.65L) was a straight, rimless cartridge used in the French Modèle 1935 pistol, as well as the MAS-38 submachine gun. The cartridge was developed for the United States and secretly produced in quantity too late for its intended use during World War I. The United States scrapped the weapons built for the cartridge between the world wars.[1] France adopted weapons for the cartridge and those weapons saw combat use; so the cartridge is best known by its French name.

The French military were introduced to the cartridge when the US demonstrated the Pedersen device after the end of World War I in Le Mans and again when John Browning exhibited a carbine in the same caliber in 1920. The US .30 Pedersen cartridge (Auto Pistol Ball Cartridge caliber .30 Model of 1918 or .30-18 Automatic) used in the Pedersen device was the basis for the 7.65×20mm Longue. The cartridge dimensions were identical, although Pedersen device cartridges were loaded with a slightly heavier 80 grains (Bad rounding hereScript error g) bullet which achieved a velocity of 1,300 feet (Bad rounding hereScript error m) per second in the longer barrel of M1903 Springfield rifles.[1]

Remington Arms produced 65 million cartridges for the Pedersen device between 1918 and 1920.[1] French 7.65×20mm Longue ammunition was manufactured in quantity from approximately 1935 to 1960.

See alsoEdit

ReferencesEdit

  • Barnes, Frank C. Cartridges of the World 3rd Edition, 1972 Digest Books, ISBN 0-695-80326-3
  • Sharpe, Philip B. The Rifle in America 1958 Funk & Wagnalls, New York
  • Hatcher, Julian S. Hatcher's Notebook 1966 Stackpole Books, Harrisburg, Pennsylvania, ISBN 0-8117-0795-4

NotesEdit

  1. 1.0 1.1 1.2 Script error


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