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In 1925, Winchester introduced the .270 Winchester, previously known as the .270 WCF, based on the 30-06 Springfield case necked down to .277" (6.8 mm). Although the .270 Winchester was not an instant success, within a few decades it became one of the most popular big game hunting cartridges for mid sized game worldwide, because of its relatively mild recoil and flat trajectory within ...
The 6.8mm Remington Special Purpose Cartridge (6.8 SPC, 6.8 SPC II or 6.8×43mm) is a rimless bottlenecked intermediate rifle cartridge that was developed by Remington Arms in collaboration with members of the U.S. Army Marksmanship Unit and United States Special Operations Command [6] to possibly replace the 5.56 NATO cartridge in short barreled rifles (SBR) and carbines.
Once popular with European hunters in Africa and India. Approaches .375 H&H power with top loads. 11mm Gras: 1874 France R 11×59mmR 1493 [3] 1903 [3] 2.549 78 [3] 0.445 [3] 59mm The first French brass cartridge for military use. Black powder. [3] Replaced by 8mm Lebel. [3] 11×60mm Mauser: 1871 Germany R 11×60mmR 1430 [3] 2013 [8] 2.815 77 [3 ...
The 6.5-284 has been used extensively in benchrest competitions and is known as an extremely accurate long range round. Using an improved version of the 6.5-284, Rich DeSimone set a 1,000-yard (914.4 m) world record with a 1.564-inch (39.73 mm) group. [4]
Winchester's factory ammunition for the .300 Winchester Magnum is capable of 990 m/s (3,260 ft/s) with the 150-grain (9.7 g) bullet and 910 m/s (3,000 ft/s) with the 12-gram (180 gr) bullet, however old Western "Power Point" soft point can reach past 1,000 metres per second (3,400 ft/s) with 9.7 g (150 gr) projectiles. The maximum point blank ...
Hodgdon H110 smokeless pistol powder The properties of the propellant are greatly influenced by the size and shape of its pieces. The specific surface area of the propellant influences the speed of burning, and the size and shape of the particles determine the specific surface area.
It uses .257 caliber bullets (6.5 mm), and popular bullet weights are between 75 and 117 gr. This cartridge also uses the abundant 5.56 case as its parent, for affordable re-loading. There is no benefit to loading this cartridge to subsonic velocities, so all loadings are directed at improving impact when using light-weight high-velocity bullets.
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.