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What is the difference between a 556 NATO and a 223 Remington?
What is the difference between a 223 Rem & a 556 mm cartridge?
Is a 5.56 NATO a good gun?
What is the difference between NATO vs Remington?
Mar 4, 2013 · The main differences are that 5.56x45 mm NATO operates at a higher chamber pressure (about 60,000 p.s.i. versus 55,000 p.s.i. on the .223 Rem.) and the 5.56’s chamber is slightly...
Jul 28, 2018 · Let’s take a look. Comparing 5.56 NATO vs .223 Remington. The simplest, yet most important, difference between the two cartridges is their respective pressure limits. The .223 Remington...
Mar 12, 2020 · The main differences are that 5.56×45 mm NATO operates at a higher chamber pressure (about 60,000 PSI versus 55,000 PSI on the .223 Rem.) and the 5.56’s chamber is slightly larger than that of the .223 Rem.
If it is newer than M855 (the mid-1980s) and it is military, you can be sure it is 5.56 and should be treated accordingly. A .223 Remington and 5.56×45 are not the same. The 5.56 has a longer leade, a longer distance between the bullet start and the onset of the rifling. Here's why it matters.
- A Quick History Lesson
- The Similarities
- The Differences
- Chamber Differences
- Summing It Up
The 5.56x45mm cartridge was first introduced in the years following the Korean War. These experimental “small caliber, high-velocity” rounds were developed to be lightweight yet still deliver enough power to be lethal at 500 yards on the modern battlefield. The round was standardized by NATO in 1963 and officially brought into service by the United...
There are some similarities between 5.56 NATO and .223 Remington cartridges. However, those similarities are mostly skin deep. The external dimensions of the cases are nearly identical, and it’s difficult to tell them apart upon first glance. Here are a few of the most notable qualities shared by .223 and 5.56 cartridges: ● Overall cartridge length...
Appearances can be deceiving. If you look closely, however, you’ll notice a few key differences. For example, although the overall case dimensions are the same, the shoulder profile and neck length are different. 5.56 cartridge cases tend to be thicker in this area to accommodate higher chamber pressures.
This danger isn’t only due to cartridge differences, however. The chamber dimensions for the 5.56 are slightly larger than a .223 chamber. The primary difference is the leade dimensions, which has a powerful effect on pressure. The leade (also referred to as throat length) is the space between the front of the chamber and the spot where the bullet ...
Despite their nearly identical appearance, there are several important differences between mil spec 5.56x45mm NATO cartridges and .223 Remington sporting loads. If you have an AR-15 style rifle with a 5.56 chamber, you can safely shoot either .223 or 5.56 cartridges, although you may see a difference in accuracy. However, if you have a .223 rifle, ...
Apr 20, 2023 · 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.
Feb 26, 2024 · The 5.56 NATO operates at a higher chamber pressure compared to the .223 Remington. Specifically, the 5.56 NATO is rated up to 58,000 psi (pounds per square inch), whereas the .223 Remington is rated up to 55,000 psi.
