I don't quite know quite to title this post.

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  • I don't quite know quite to title this post.

    I don't know if anyone can answer this but here we go. As some readers may be aware the U.S. will shortly be in the process of replacing the 5.56x45mm round with the 6.8x43mm. It seems that the 6.5 to 7mm range seems to be the sweet spot for optimal performance: the optimal balance between ranging capability and stopping power.
    Does anyone know of any research that has been done as to why this is so?

  • #2
    It's only Wikipedia, but gives the general idea:--


    It takes 43 muscles to frown, 17 to smile, and 3 for proper trigger squeeze........Relax!!


    • #3
      This started twenty years ago. It was not adopted then and I am not holding my breath that it will be adopted now.
      Back then they decided even though the 7.62x39 was a better round they would not adopt a commy round. So they come up with the 6.8mm (0.277") .
      Last edited by MrCarbine; 19-11-2020, 03:39 PM.
      If you're going through hell, keep going."
      Winston Churchill