After the US Army announced the 277 Fury would be the new rifle cartridge for the NGSW program, we immediately heard rumors that it was the 223 Rem or 5.56 NATO round killer. But is this actually the case? Below, we’ve compared the 277 Fury vs 223 across several scenarios so you can determine which round is best for you. A Quick Note on Nomenclature In this article, .223 Remington (223 Rem) and 5.56x45mm NATO (556 NATO) will be used interchangeably. However, please understand that rifles chambered in .223 Rem differ from 5.56 NATO. You should experience no issues shooting...