The 5.56mm, also known as 5.56x45mm NATO, is the standardized rifle cartridge used for the nations under the NATO. It was designed by Remington Arms and ArmaLite and its production began in 1983. This rifle cartridge is sold commercially as .308 Winchester. The 5.66mm is based on the .223 Remington cartridge, which is why it has the same physical appearance, except for the casing head stamp, which has a NATO insignia. The 5.56mm has a 5.71 bullet diameter, an overall length of 2.26 inches, with a maximum pressure of 63,000 psi, and is best fired using a barrel that has a 1:8 rifling twist.
There has been complaints that the 5.56mm lacks stopping power, but others contend that with the correct shot placement, it can still be lethal and that the difficulty with the 5.56mm lies in properly training the person who is using it.
There are many variations of the 5.66mm both for military and civilian use. The M193 cartridge is a full metal jacket that has a pressure of 52,000 psi and a weight of 55 grains. The M196 is a tracer cartridge, which has the same ballistics as that of the M193. There is also the M855 which has better penetration against steel surfaces.
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FN SCAR 17 is featured in this video by FPSRussia and displays the rifle’s power, accuracy and performance. FN SCAR is a family of rifles consisting three distinct types of rifles: SCAR L, SCAR H and SSR. Here L stands for ‘light’ and H stands for ‘heavy’. SCAR L is an assault rifle whereas SCAR […]
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This video introduces the new HK416 A5 assault rifle which is designed and manufactured by Heckler & Koch, the famous German defense manufacturing company. The HK416 A5 is the developed version of the HK414 rifle in 5.56× 45 mm NATO caliber. This gas operated rifle is approx. 797 to 893 mm in length, 74.0 mm […]
The Palmetto State Armory is located in South Carolina and is a firearms retailer that is a fairly new organization (just a few years old). It has, however, earned quite a reputation and has quite a good sales record. The Legend behind the Name The official state tree is the palmetto, from which this company derives its name. However, […]