|556 round vs 762||0.77||1||7277||48|
7.62 retains over 1,700 foot-pounds of energy at 500-yards versus 5.56 which hits 950 foot-pounds at 500-yards. Pushing out to 1,000-yards, the 7.62 M80 loads retain over 1,000 foot-pounds of energy. That extra power makes it a more capable long-range round.What's the difference between a 5.56 and a.223?
Often you’ll see an AR receiver marked for .223, which is the imperial equivalent of the 5.56x45mm round. However, and this is important, that does not mean that they are the same round . SAMMI makes it clear that firearms chambered for .223 are not meant to fire 5.56×45 NATO rounds.What's the difference between 5.56 NATO and 7.62 NATO?
Steel Case Ammo. The 5.56 NATO was originally designed off of the commercial .223 Remington load, and it was adopted by NATO countries in 1961. The concept of the 5.56 NATO was that is was smaller than the previous 7.62 NATO cartridge, which meant troops in the field could carry more of it.What kind of rifle round is 7.62x51mm?
The 7.62x51mm became the round de jour for infantry rifles and machine guns. Though it was short-lived as an infantry rifle cartridge in the United States, it saw wider use across NATO.