The 5.56×45mm NATO (official NATO nomenclature 5.56 NATO, commonly pronounced "five-five-six") is a rimless bottlenecked centerfire intermediate cartridge family developed in the late 1970s in Belgium by FN Herstal. [5] It consists of the SS109, L110, and SS111 cartridges.

2023年4月19日 · There are two primary differences between the .223 Remington and the 5.56 NATO. The first is that the 5.56 is loaded at higher pressures than the .223. The 5.56 NATO cartridge runs around 58,000 pounds-per-square-inch (psi), while the .223 Remington is loaded to approximately 55,000 psi.

2024年5月15日 · Is there a difference between 5.56 and 5.56 NATO ammo? Yes, there is a difference. While they have a similar appearance and caliber, 5.56 NATO ammo is manufactured to higher pressure and velocity standards, making it unsuitable for use in all firearms chambered for 5.56 and .223 Remington.

2024年2月18日 · What caliber is a 5.56 NATO? The 5.56 NATO caliber is actually 5.56x45mm, which is equivalent to .223 Remington. It is commonly used in military and civilian firearms. What is the difference between 5.56 NATO and .223 Remington? The primary difference between the two is in their chamber pressure and throat geometry.

2023年2月2日 · Here are 5.56 NATO ballistics charts with other information and a brief history on this centerfire rifle cartridge.

The table below gives a list of firearms that can fire the 5.56×45mm NATO cartridge, first developed and used in the late 1970s for the M16 rifle, which to date, is the most widely produced weapon in this caliber. [1]

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This article will discuss the benefits of the 5.56mm NATO caliber, compare it with its bigger brother 7.62, look into effects of barrel length and finally how to improve the lethality of our soldiers.

Browse our 223 Remington 5.56 Nato Ammo on BudsGunShop.com. Use our advanced product search tools to find exactly what you are looking for!

2025年2月11日 · Understanding the ballistics of the 5.56 NATO round is crucial for shooters. The 5.56 is a popular choice for many firearm enthusiasts. Knowing how it performs can help improve accuracy and effectiveness. The performance of the 5.56 NATO round depends on several factors. One of the most important is the barrel length of the firearm. Barrel ...