Ghosts of the Savannah, by M. Bennardo

Asimov's Science Fiction, June 2015; ~10,200 words
Rating: NR, No speculative element

In prehistoric Africa, two women defy custom and run with the hunters.

Mini-Review (click to view--possible spoilers)

This is a very well-written, powerfully moving story, with a dynamite ending.

But it's not SF in any sense.