A man is shot in a gunfight. No blood.
A man is punished by being hit with a leather strap several times. Minor.
Many horses are shot or suffer serious injuries (such as falling down a hill). Many of these horse stunts appear to be partially unsimulated (ie a horse is tripped such that it falls very hard down a rocky hillside, severe trips that pull the horse's head sharply to the ground, and so on).
A horse is seen gutted and partially butchered after it dies of its injuries and is eaten by the posse.
A man is attacked, and his genital area is burned (offscreen). Not graphic, but visible.
A Native American is shot, then hanged upside down and burned to death. He does not move, but his burning body is again shot to "put him out of his misery" - underlying the fact he was still alive while burned.
Many bloody shootings. Men yell in pain but blood is minor.
A man is bitten by a rattlesnake and shown writhing in pain. The same man is shot in the hand and we clearly see the bullet hole on it.