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.22 caliber, or 5.6 mm, refers to a common firearms bore diameter of 0.22 inch (5.6 mm) in both rimfire and centerfire cartridges. Cartridges in this caliber include the very widely used .22 Long Rifle and .223 Remington/5.56×45mm NATO. .22 inch is also a popular air gun pellet caliber, second only to the ubiquitous .177 caliber.
Firing a 5.56×45mm NATO round out of a rifle chambered in .223 Remington could be injurious or fatal to the user as well as the gun, however .223 Remington ammunition can be fired safely from almost any rifle chambered in 5.56×45mm NATO as the NATO specified rifles can handle much higher chamber pressures than the .223 Remington is capable of ...
The official name for .223 Remington in the US Army is cartridge 5.56x45mm ball, M193. If a 5.56×45mm NATO cartridge is loaded into a chamber intended to use .223 Remington, the bullet will be in contact with the rifling and the forcing cone is very tight. This generates a much higher pressure than .223 Remington chambers are designed for. [3]
NATO (1980), 2nd gen. Current NATO service including M16 rifle, Steyr AUG, SA80, FAMAS, Heckler & Koch G36. Similar, but not interchangeable with .223 Rem. 5.6mm Gw Pat 90: 1987 Switzerland R 5.56×45mm 3168 1243 0.622 28.5 0.224 45mm Swiss military version of the 5.56×45mm NATO / 223 Remington. For SIG SG 550 and variants. 5.7×28mm: 1990 ...
This is also true for rifles such as Ruger's Mini-14 and most bolt-action rifles chambered for the .223 Remington cartridge. [1] 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.
Typical factory-loaded .22-250 Remington can propel a 55 grain (3.56 g) spitzer bullet at 3,680 ft/s (1122 m/s) with 1,654 ft⋅lbf (2,243 J) of energy. [8] Many other loads with lighter bullets are used to achieve velocities of over 4,000 ft/s (1,219 m/s), while still having effective energy for use in hunting small game and medium-sized ...
The 5.6×39mm, also known in the U.S. as .220 Russian, is a cartridge developed in 1961 for deer hunting in the USSR. [3] It fires a 5.6mm projectile from necked down 7.62×39mm brass.
The .22 TCM (Tuason, Craig, Micromagnum) is a proprietary bottlenecked rimless cartridge derived from a 5.56×45mm NATO (.223 Remington) parent case. It was developed by custom gunsmith Fred Craig in collaboration with Martin Tuason, the President of Rock Island Armory (RIA) and Armscor. The cartridge is primarily used in Rock Island Armory ...