8×59mm Rb Breda
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8×59mmRb Breda | ||||||||||||||||
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Type | Machine gun | |||||||||||||||
Place of origin | Italy, Kingdom of Italy | |||||||||||||||
Service history | ||||||||||||||||
In service | 1935–1960s | |||||||||||||||
Used by | Italy, Portugal[1] | |||||||||||||||
Wars | ||||||||||||||||
Production history | ||||||||||||||||
Designed | 1935 | |||||||||||||||
Produced | 1935–1960s | |||||||||||||||
Specifications | ||||||||||||||||
Parent case | unknown | |||||||||||||||
Case type | rebated rim, bottleneck | |||||||||||||||
Bullet diameter | 8.36 mm (0.329 in) | |||||||||||||||
Land diameter | 8.0 mm (0.31 in) | |||||||||||||||
Neck diameter | 9.14 mm (0.360 in) | |||||||||||||||
Shoulder diameter | 10.80 mm (0.425 in) | |||||||||||||||
Base diameter | 12.49 mm (0.492 in) | |||||||||||||||
Rim diameter | 11.92 mm (0.469 in) | |||||||||||||||
Rim thickness | 1.40 mm (0.055 in) | |||||||||||||||
Case length | 58.84 mm (2.317 in) | |||||||||||||||
Overall length | 80.44 mm (3.167 in) | |||||||||||||||
Rifling twist | 240[2] or 245[3] mm | |||||||||||||||
Primer type | large rifle | |||||||||||||||
Maximum pressure | 3150 atm 46,300 psi | |||||||||||||||
Ballistic performance | ||||||||||||||||
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Source(s): [4][3] |
8×59mmRb Breda was an Italian heavy arms cartridge. It is unusual in that it is one of the small number of cartridges designed with a rebated rim, meaning the rim of the cartridge is smaller in diameter than the body of the cartridge. The "Rb" in the designation stands for "rebated rim".
History and Usage[edit]
8×59mmRB Breda was a caliber created for use by the Royal Italian Army in World War II. The cartridge was originally designed for use in anti-aircraft heavy machine guns like the Breda M37, Breda M38, and Fiat–Revelli Modello 1935. It was also used in the experimental Pavesi M42 semi-automatic rifle. It was introduced in 1935 but is no longer in production today.
- Italy manufactured ammunition during the brief period the Breda machine guns were in Italian service.
- Albania manufactured ammunition after World War Two to use in Italian machine guns they captured during World War 2.
References[edit]
- ^ a b Abbott, Peter, and Rodrigues, Manuel, Modern African Wars 2: Angola and Mozambique, 1961-1974, Osprey Publishing (1998), p. 18
- ^ "Mitragliatrice Breda Mod 37 8mm 1940 | PDF".
- ^ a b Istruzione sulla Mitragliatrice Fiat 35 (PDF). Ministero della Guerra. Archived from the original on March 31, 2022. Retrieved March 30, 2022.
{{cite book}}
: CS1 maint: bot: original URL status unknown (link) - ^ Johnson, Melvin M. Jr. (1944). Rifles and Machine Guns. New York: William Morrow & Company. p. 384.
- "8×59mm Breda, Italian Machine Gun Cartridge". ammo-one.com. Retrieved March 27, 2011.
"8x59 mm. / 8 mm.Breda/ 8mm. FIAT/8 mm. Modelo 35/ DWM 591". municion.org. Archived from the original on November 21, 2019. Retrieved February 14, 2013.