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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How .223 and 5.56 Became the Most Misunderstood Cartridges

Why .223 and 5.56 remain widely misunderstood. The post How .223 and 5.56 Became the Most Misunderstood Cartridges appeared first on Bushcraft Base Camp.