• Dr. Coomer
    link
    fedilink
    English
    2
    edit-2
    8 months ago

    I look into it. 5.7 is shorter than a .223 and is a much smaller grain.

    • @alcoholicorn@lemmy.ml
      link
      fedilink
      28 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.