Why .223 and 5.56 remain widely misunderstood. The post How .223 and 5.56 Became the Most Misunderstood Cartridges appeared ...

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.

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After carrying the M16 or one of its cousins across the globe for more than half a century, soldiers could get a peek at a new prototype assault rifle that fires a larger round by 2020. Army ...