High damage output comes at a cost. Activision describes the PML 5.56 light machine gun as a full-auto weapon which wields a “fast rate of fire and high lethality, offset by low mobility and hefty ...

For most shooters the difference between .223 Remington and 5.56×45 NATO is minor, but it matters because 5.56 is typically loaded to higher pressures and uses a slightly different chamber leade.

Two of the most popular cartridges today are nearly identical and sometimes considered transposable, but when looking at 5.56 vs .223, there are some key differences. The .223 Remington started as a ...