I graduated from high school in 1965 and still, today, I know a few women like that. Despite the intervening years and all the PC hype, women's lib crap, assorted nonsense, they are still the same as always.
The 6.8 Rem Spc (center) is derived from the 30 Remington (left), and compared to the 5.56 (right). The straight walled case uses the same mags as the 5.56 (different follower) and does not require curved mags like the tapered 30 Russian.
Now that looks like a winner! Short case, major caliber, good powder capacity. Everything I love in a woma... er cartridge.