105×617mmR
Widely used calibre of tank gun ammunition / From Wikipedia, the free encyclopedia
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The 105×617mm (4.1 inch), also known as 105×617mmR, is a common, NATO-standard, tank gun cartridge used in 105mm guns such as those derived from the Royal Ordnance L7.
Quick Facts Type, Place of origin ...
105×617R | |
---|---|
Type | Tank gun |
Place of origin | United Kingdom |
Service history | |
In service | 1959–present |
Used by | Western Bloc and others |
Production history | |
Designer | RARDE Fort Halstead |
Designed | 1950s |
Specifications | |
Case type | Rimmed, bottleneck |
Bullet diameter | 105 mm (4.1 in) |
Shoulder diameter | 129 mm (5.1 in) |
Base diameter | 137 mm (5.4 in) |
Rim diameter | 147 mm (5.8 in) |
Case length | 607–617 mm (23.9–24.3 in) |
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The 105×617mmR cartridge was originally developed from the 84 mm (3.3 in) calibre Ordnance QF 20-pounder 84 × 618R cartridge as part of the development of the L7 105 mm rifled gun.