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The 6.5mm Remington Magnum is based on the .350 Remington Magnum necked down to accept a .264 caliber (6.71 mm) bullet. It was one of the original short, fat magnum cartridges to be put into production. The short, fat cartridge design is known to promote efficient powder burning characteristics. The SAAMI recommends a 6 groove barrel with a 1:9 ...
Bullet-for-bullet, the 6.5mm Creedmoor achieves a slower muzzle velocity than longer cartridges such as the 6.5-284 Norma or magnum cartridges such as the 6.5mm Remington Magnum. However, with an overall length of 2.825 inches (71.8 mm), it can be chambered in short-action rifles, as can the 6.5×47mm Lapua.
Firing factory-loaded ammunition with bullets ranging from 90 to 129 grains (5.8 to 8.4 g), its muzzle velocity varies from 2,500 ft/s (760 m/s) with 129- and 130-grain (8.4 g) bullets to 2,900 ft/s (880 m/s) with 90 gr (5.8 g) bullets (similar in velocity to a 77-grain (5.0 g) 5.56 mm round). Depending on their case material and bullet weight ...
6.5mm Grendel (6.5×39mm), cartridge designed for the AR-15; 6.5mm Creedmoor, centerfire rifle cartridge; 6.5mm Remington Magnum, belted bottlenecked cartridge; 6.5×42mm, also known as 6.5 MPC (Multi Purpose Cartridge), centerfire rifle cartridge
The 6.5×52mm Carcano, also known as the 6.5×52mm Parravicini–Carcano or 6.5×52mm Mannlicher–Carcano, is an Italian military 6.5 mm (.268 cal, actually 0.2675 inches) rimless bottle-necked rifle cartridge, developed from 1889 to 1891 and used in the Carcano 1891 rifle and many of its successors. A common synonym in American gun literature ...
Bullet diameter.264 in (6.7 mm) Shoulder diameter.4949 in (12.57 mm) ... it has a large-for-caliber case capacity, resulting in high velocities. When bullets with ...
6.5mm Creedmoor, 6.5×48 mm, introduced in 2007; 6.5×47mm Lapua, a 2005 cartridge that fires the same diameter and weight 9.0g bullet as the 6.5×54mm but achieves a faster muzzle velocity; 6.5×53mmR, the rimmed Romanian and Dutch service rifle cartridge from the 1890s through World War II
Thanks in part to its relatively roomy case which was designed for loading long, heavy 6.71 mm (0.264 in) bullets, and a 12.2 mm (0.480 in) diameter bolt face, it has proven more successful than other first-generation smokeless-powder military cartridges of similar bullet calibers, such as the 6×60mm US Navy, 6.5×54mm Mannlicher–Schönauer ...