The cartridges in Amos Cartwright's bandolier are not for the Winchester rifle that he carries. They look like they could be for a .30-06. Ammunition like this wasn't used until the 1890's. Pointed bullets like this would not be used in a Winchester as they could cause the cartridges in the magazine to detonate.
23 dead cavalry men are ridden slowly through Dodge in a funeral procession with a drum beating slowly and none of the men have removed their hats out of respect.