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Common sizes are 15 mm and 22 mm. [7] Other sizes include 18 mm, 28 mm, 35 mm, 42 mm, 54 mm, 66.7 mm, 76.1 mm, and 108 mm outside diameters. Tubing in 8 mm and 10 mm outside diameters is called a "micro bore" and is easier to install, although there is a slightly increased risk of blockage from scale or debris.
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The Littlejohn adaptor was a device that could be added to the British QF 2 pounder (40 mm) anti-tank gun. It was used to extend the service life of the 2-pounder during the Second World War by converting it to squeeze bore operation.
Microtunneling or microtunnelling is a tunnel construction technique used to construct utility tunnels from approximately 0.5–4 m (1 ft 8 in – 13 ft 1 in) in diameter.
With the 8×68mm S as the parent case wildcatters have created .25×68, .270×68, 7×68mm, .30×68, .338×68, .375×68 or .416×68 variants. Improved or blown out 68 mm cartridge designs are reported to come performance wise close to the 8mm Remington Magnum which has about 14% more case capacity then the standard 8×68mm S.
The 8mm Remington Magnum belted rifle cartridge was introduced by Remington Arms Company in 1978 as a new chambering for the model 700 BDL rifle. The 8mm Remington Magnum's parent case is the .375 H&H Magnum. It is a very long and powerful cartridge that cannot be used in standard length actions, such as those that accommodate the .30-06 ...
The term "8mm Lebel" for the French Mle 1892 revolver ammunition, is only applied outside France for commercial reasons and has nothing to do with the Lebel rifle. However, the term "8mm Lebel", used to identify a rifle cartridge, is widely recognized to distinguish the French rifle cartridge from other 8 mm rifle cartridges , such as the 8× ...
The 8×60mm S is a rimless bottlenecked centerfire cartridge of German origin, dating back to the interbellum period between World War I and World War II.The bore has the same dimensions as the German 7.92×57mm Mauser service cartridge (designated as "S-bore").