What is the name of this fairly graphic western?

This is a recent western(last 5 years) in which a band of outlaws comes upon a family living on the plains. The 2 daughters have been abused by their father and the mother has been complicit. The Oldest daughter ends up siding with the leader of the outlaw gang, and takes revenge by killing her father, younger sister,( maybe mother too) and later on the outlaw gang leader himself, whom she has escaped with.