7.92×57mm Mauser
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The 7.92×57mm Mauser is a rimless bottlenecked rifle cartridge. The 7.92×57mm Mauser cartridge was adopted by the German Empire in 1903–1905, and was the German service cartridge in both World Wars. In its prime, the 7.92×57mm Mauser cartridge was one of the world's most popular military cartridges. In the 21st century it is still a popular sport and hunting cartridge that is factory-produced in Europe and the United States.
From left to right 7.92×33mm Kurz, 7.62×39mm, 5.56×45mm NATO, 7.62×51mm NATO, .303 British, 6.5×55mm Swedish, 7.92×57mm Mauser, and .30-06 Springfield military cartridges
1888 pattern M/88 (left) parent cartridge alongside the 1903 pattern 7.92×57mm Mauser S Patrone.
Karabiner 98k stripper clip with brass-cased 7.92×57mm ammunition
MG 34 with inserted 7.92×57mm Gurt 34 ammunition belt
6.5×55mm Swedish
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6.5×55mm Swedish, also known simply as 6.5×55mm, 6.5x55 SE, 6.5x55 Swede, or in its native military as 6.5 mm patron m/94, meaning "6.5 mm cartridge model 94", referring to 1894, is a first-generation smokeless powder rimless bottlenecked rifle cartridge. The cartridge has most users in the Scandinavian countries, where it is known as the 6,5×55 or just "the 6,5".
6.5×55mm
From left to right 9.3×62mm, .30-06 Springfield, 7.92×57mm Mauser, 6.5×55mm and .308 Winchester cartridges
Size comparison of some 6.5 mm cartridges, left to right: .264 Winchester Magnum, 6.5×55mm, 6.5×52mm Carcano, .260 Remington, 6.5mm Creedmoor, and 6.5mm Grendel
Swedish 6.5 mm skarp patron m/94 projektil m/94 ball ammunition