In Hannie Calder, the movie actually revolves around a woman (and what a woman: Raquel Welch!) but it also features Hollywood greats Ernest Borgnine, Jack Elam and Strother Martin as the three men who killed her husband and raped her in the beginning of the movie. Out for revenge, she meets Robert Culp, a bounty hunter, who teaches her to shoot. She's soon after the three, with predictable results.
Thanks for ther pic, Gunfreezone!