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.
Charles Bronson's brother is hanged upside down and burned to death. He does not move, but his burning body is shot - underlying the fact he was still alive.
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.