The Return of Wildfire.

In this above-average western, a villainous land grabber attempts to force horse ranchers to sell their ranches so he can become king of the horse market. One stubborn rancher refuses to relent and his killed. His two surviving sisters then continue the fight. They are soon assisted by a passing drifter who ends up falling for one of them. In the end a gunfight between the good and bad guys ensues.