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The idea of a proximity fuse had long been considered militarily useful. Several ideas had been considered, including optical systems that shone a light, sometimes infrared, and triggered when the reflection reached a certain threshold, various ground-triggered means using radio signals, and capacitive or inductive methods similar to a metal detector.
While modern firearms are generally referred to by the name of the cartridge the gun is chambered for, they are still categorized together based on bore diameter. [citation needed] For example, a firearm might be described as a "30 caliber rifle", which could accommodate any of a wide range of cartridges using a roughly 0.30 inches (7.6 mm) projectile; or as a "22 rimfire", referring to any ...
The round also suffers some accuracy issues, since the technology of the time was incapable of applying rifling to the bore of such a small caliber, resulting in no spin on the bullet. [4] Due to the weakness and inaccuracy of the firearm, the 2mm Kolibri was advertised as a ladies' self-defence weapon that was small enough to fit inside a handbag.
The 1903 pattern 7.92×57mm Mauser S Patrone produced excessive muzzle flash when fired from arms that did not have a long barrel like the Gewehr 98. It was found that the s.S. Patrone , originally designed for long range machine gun use, produced less muzzle flash out of rifles that had a shorter barrel and also provided better accuracy.
Walter D.M. Bell, who was known to have shot over a thousand elephants in his lifetime, used, among others, .264 caliber and .284 caliber rifles to do so. [8] [9] The .260 Remington, while having a slightly lesser case capacity than the 6.5×55mm, is loaded to higher pressure levels.
Caliber (mm) Weapon name Country of origin Period 87.6: Ordnance QF 25-pounder gun-howitzer United Kingdom: World War II, modern 87.6: Ordnance QF 25-pounder Short Mark 1 gun-howitzer Australia: World War II 94: Ordnance QF 95 mm howitzer, infantry United Kingdom: World War II 100: 10 cm M. 14 Feldhaubitze Austria-Hungary: World Wars I, II 100
On 26 September 1526, Francis I wrote about the artillerye de mon calibre ("Artillery of my caliber"), and an even earlier mention is known from 1512. [1] The Calibres de France were formalized in an ordinance of 1552.
The Springfield Model 1795 was a .69 caliber flintlock musket manufactured in the late 18th and early 19th centuries in the United States.. The Model 1795 was the first musket to be produced in the United States by Eli Whitney at both the Springfield and Harpers Ferry U.S. armories.