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The 6×45mm cartridge provides better down range performance than the .223 Remington or the 5.56 NATO cartridges. The cartridge is currently offered by Les Baer in an AR rifle. The cartridge had been offered by Cooper Arms, Kimber and a few other rifle manufacturers in their rifles as a regular factory chambering for a period of time. [3]
The .223 Remington (designated 223 Remington by SAAMI [4] and 223 Rem. by the C.I.P. [5]) is a rimless, bottlenecked, centerfire intermediate cartridge.It was developed in 1957 by Remington Arms and Fairchild Industries for the U.S. Continental Army Command of the United States Army as part of a project to create a small-caliber, high-velocity firearm.
This is a table of selected pistol/submachine gun and rifle/machine gun cartridges by common name. Data values are the highest found for the cartridge, and might not occur in the same load (e.g. the highest muzzle energy might not be in the same load as the highest muzzle velocity, since the bullet weights can differ between loads).
The .223 WSSM was introduced in 2003 by the Browning Arms Company, Winchester Ammunition, and Winchester Repeating Arms Company. The .223 designation is a reference to the popular .223 Remington. It is currently the fastest production .22 caliber round in the world with muzzle velocities as high as 4,600 feet per second (1,402 meters per second).
Conversions for rifles and carbines of larger caliber, such as the AK-47 or Thompson submachine gun include a rifled insert barrel extending beyond the length of the chamber. [ 9 ] [ 10 ] One exception to the use of a special lightweight bolt was the Colt Service Ace , offered as a complete pistol or as a conversion kit for the M1911.
The .221 Fireball case shares the same case head dimensions (0.375"/ 9.53mm) as the commercial .223 Remington and military 5.56×45mm cartridges. The 7mm Remington Bench Rest case shares the same case head dimensions (0.470"/ 11.94mm) as the commercial .308 Winchester (as well as other cartridges based on that case; .243 Winchester , .260 ...
Intended as a varmint rifle cartridge, the .204 was based on the .222 Remington Magnum, which is slightly longer than the .223 Remington and offers about 5% more case capacity. Designed to have a very long point blank range , the factory loading offers impressive ballistics, placing a 32gr Hornady V-Max bullet 1.96 inches high at 150 yards (140 ...
The Heckler & Koch G41 is a German 5.56×45mm NATO assault rifle introduced in 1981 and produced in limited quantities by Heckler & Koch.It was designed to replace the 7.62×51mm NATO chambered Heckler & Koch G3 and the G3 based .223 Remington/5.56×45mm and later 5.56×45mm NATO chambered Heckler & Koch HK33 service rifles providing a more modern weapon compatible with then recently ...