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The 7.62×54mmR is a rimmed rifle cartridge developed by the Russian Empire and introduced as a service cartridge in 1891. Originally designed for the bolt-action Mosin–Nagant rifle, it was used during the late tsarist era and throughout the Soviet period to the present day.
It was the service cartridge of the late Tsarist era and throughout the Soviet period to the present-day Russia and other countries as well. The 7.62×54mmR remains one of the few standard-issue rimmed cartridges still in military use, and has one of the longest service lives of any military-issued cartridge. [1] This table is sortable for ...
The original can be viewed here: 7.62 x 54 R.jpg: . Modifications made by Tsaitgaist . This file is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported license.
7.63×25mm Mauser, which was the basis for, and has nearly identical dimensions to, the Tokarev, but has different loading specifications. 7.65×25mm Borchardt, from which both the Mauser and Parabellum cartridges were developed; 7.65×21mm Parabellum; 7.65×17mm Browning, more commonly known as .32 ACP
The 7.62×53mmR cartridge remains in military use to this day, although it is now only used by the 7.62 TKIV 85 sniper rifle. [citation needed] PKM machine guns and other Russian weapons in use by the Finnish Defence Forces use the 7.62×54mmR exclusively.
The PK uses the 7.62×54mmR Eastern Bloc standard cartridge that produces significantly more bolt thrust when compared to the Eastern Bloc 7.62×39mm and 5.45×39mm intermediate cartridges. With the use of a single spare parts kit and two barrel assemblies the service life of the modernized PKM machine gun series is guaranteed for at least ...
To enable the desired precision of the SVD, new 7.62×54mmR "sniper" ammunition, designated 7N1, was designed by V. M. Sabelnikov, P. P. Sazonov and V. M. Dvorianinov in 1966 to meet the new standards. 7N1 sniper cartridges should not produce more than 1.24 MOA extreme vertical spread with 240 mm twist rate barrels and no more than 1.04 MOA ...
The point I'm making is that what appears to have happened is that the cartridge was originally known in the West as 7.62mm Russian, and then when the nomenclature system was overhauled later in the 20th Century, the designation was changed to 7.62x54 Rimmed, just as .30-30 Winchester is 7.62x51 Rimmed to differentiate it from the 7.62x51 NATO ...