Load data for caliber ".223 Rem. (5.56 x 45 NATO)"The .223 Remington (also known as 5.56x45mm NATO) cartridge is a popular rifle round that was developed by Remington Arms in 1964. It has an overall length of 2.26" and is a rimless, bottle-necked case measuring 1.76" long with a bullet weight ranging from 30 to 77 grains. It fires at pressures up to 55,000 PSI and produces more energy than other popular calibers like 7.62x39mm and 6.5 Grendel.
Originally designed for the US Military, the .223 Remington is used in many semi-automatic rifles for civilian applications such as self-defense, target shooting and hunting. Its accuracy and light recoil make it ideal for sport shooting competitions, while its excellent terminal ballistics make it suitable for hunting game ranging from varmints to medium game animals.
You find .223 Rem. (5.56 x 45 NATO) with all common powders and bullets by clicking the 'Loads in this caliber' button above.
Technical Specifications (based on the respective safety standard - see more details in tab 'Datasheet' if available)
|Caliber:||.223 Rem. (5.56 x 45 NATO)|
|Bullet Diameter:||0.224 '' | 5.69 mm|
|Primer Size:||Small Rifle (SR)|
|Max. Case Length (l3):||1.76'' | 44.68 mm|
|Max .Cartridge Length / OAL:||2.26'' | 57.4 mm|
|Maximum Standardized Pressure:||62367.2 psi | 4300 bar|
The Commission internationale permanente pour l'épreuve des armes à feu portatives ("Permanent International Commission for the Proof of Small Arms" – commonly abbreviated as C.I.P.) is an international organisation which sets standards for safety testing of firearms. (The word portatives ("portable") in the name refers to the fact the C.I.P. tests small arms almost exclusively; it is ordinarily omitted from the English translation of the name.) As of 2015, its members are the national governments of 14 countries, of which 11 are European Union member states. The C.I.P. safeguards that all firearms and ammunition sold to civilian purchasers in member states are safe for the users.
To achieve this, all such firearms are first proof tested at C.I.P. accredited Proof Houses. The same applies for cartridges; at regular intervals, cartridges are tested against the C.I.P. pressure specifications at the ammunition manufacturing plants and at C.I.P. accredited Proof Houses.
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