A few very brief exposures.

Adultery is a plot point. There is a brief scene of sexual activity which includes full frontal male nudity with genitalia shown. A naked woman is briefly seen from behind while asleep; her breasts are visible when she wakes up.

Quite a few people get shot on screen. Nothing gory.

Saloons and drinking, but not to excess.

Several intense confrontations among many of the characters.