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.

Are you trying to learn the difference between the .223 vs 5.56x45mm NATO cartridges so you can use the right ammunition for your AR-15? Here’s what you need to know about their similarities and differences.

2024年2月18日 · Is 5.56x45mm NATO the same as .223 Remington? While they are similar in size, there are slight differences in chamber pressures and dimensions. What is the muzzle velocity of 5.56x45mm ammunition? Typically, the muzzle velocity ranges from 2900 to 3200 feet per second, depending on the specific load. Can 5.56x45mm ammunition be used for hunting?

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6月13日 · “Green tip” 5.56x45mm NATO rounds, properly called M855 rounds, have been a subject of much debate and controversy in recent years. To help clear the air (as much as we ever can around an issue like this, anyway), we wanted to …

The 5.56x45mm NATO round is an improved version of the M193 round that was developed in Belgium. Compared to the older M193 the SS109 uses a heavier and more effective bullet, uses a cleaner propellant, has a lower muzzle velocity and uses a faster rifling twist rate.

2024年11月28日 · Discover the key differences between 5.56×45 and 5.56 NATO cartridges, including specs, ballistic performance, and compatibility, to enhance your experience. The key to understanding the performance of any rifle cartridge lies in its specifications.

2024年12月7日 · Get the facts on 5.56 NATO, from its origin and history to its measurements, ballistics, and comparisons to other calibers. The 5.56x45mm ammunition is one of the most widely used and recognized cartridges in the world, with a rich history and a …

2023年11月17日 · Let's take a deep dive into Soviet-era caliber debates and learn everything you ever wanted to know about the 5.56x45mm NATO and 5.45x39mm cartridges.

2009年11月22日 · 5.56x45mm NATO is a rifle cartridge developed in the United States and originally chambered in the M16 rifle. Under STANAG 4172, it is a standard cartridge for NATO forces as well as many non-NATO countries.