• Dr. Coomer@lemmy.world
    link
    fedilink
    English
    arrow-up
    6
    ·
    8 months ago

    Maybe the original was 5.56mm and some dumbass decide “nah, not enough b u l l e t, better make it 5.7mm.”

    • alcoholicorn@lemmy.ml
      link
      fedilink
      arrow-up
      6
      ·
      8 months ago

      OK, so there is a 5.7mm, that’s the same diameter as 5.56/.223, but it’s not compatible with either because of the french.

        • alcoholicorn@lemmy.ml
          link
          fedilink
          arrow-up
          2
          ·
          8 months ago

          Kinda?

          The case is both shorter and narrower than 556/223, so it won’t even sit right in anything not designed for it. But FN makes quite a few guns that use it.