Book: the Trailsman by Jon Sharpe

A Nebraska nightmare. Sky Fargo set his sites on a sinful sister. Bullets of the blessed. Sister salvation has made it her job to red Gladville of sin and if you don’t like it, she’ll burn down your house. With her small army of Vidu, watching everyone in town she has all but taken over. When Fargo rides in, he finds one woman who had the gumption to stand up to the sister mercilessly, beaten, and left for dad. Now Fargo is about to stand up from himself and shoot others down until gladville is cleansed.