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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).
The AR-15 rifle usually comes chambered for either the military cartridge 5.56×45mm or the .223 Remington. Because of the pressures associated with the 5.56×45mm, it is not advisable to fire 5.56×45mm rounds in an AR-15 marked as .223 Remington, since this can result in damage to the rifle or injury to the shooter. [1]
.223 Remington.223 Winchester Super Short Magnum.224 Voboril.224 Boz.224 Weatherby Magnum.224 Valkyrie.225 Winchester.297/230 Morris.240 Apex.240 Weatherby Magnum.242 Rimless Nitro Express.243 Winchester.243 Winchester Super Short Magnum.244 H&H Magnum.244 Remington.246 Purdey.303/25.25 Remington.25-45 Sharps.25-21 Stevens.25-25 Stevens
The .223 Remington (designated 223 Remington by SAAMI [4] and 223 Rem. by the C.I.P. [5], pronounced "two-twenty three") 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 ...
Conversion from kilo grain feet per second to newton-seconds is trivial, since both the grain and foot is based on SI units. One troy grain is defined as 0.064 798 91 grams exactly [ 1 ] and one international foot is defined as 0.3048 meters , giving the exact conversion factor of 0.019 750 707 768 .
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.
In the spring of 1962 Remington submitted the specifications of the .223 Remington to the Sporting Arms and Ammunition Manufacturers' Institute (SAAMI). With the U.S. military adoption of the M16 assault rifle in 1963, the .223 Remington in a slightly derived form was standardized as the 5.56×45mm NATO. As a commercial sporting cartridge the ...
A .30 Carbine case necked down to .223 caliber (5.56 mm), this cartridge was developed to convert military surplus M1 Carbines into short range varmint guns. [8] 6mm PPC. Based on the .220 Russian, which is in turn based on the 7.62×39mm intermediate-power cartridge. The 6mm PPC was developed in 1975 specifically for benchrest shooting. While ...