When the "Singing Cowboy" and his partner ride up to house, they tie their horses to the rail in front. However, when another man rides up to house shortly thereafter, there are no horses tied to the rail. But, when "the Singing Cowboy" and his partner rush out front to mount up, the horses are again tied up in front.
When the "Singing Cowboy" rides up singing and encounters the "Rustlers" the leather strap on his right holster is not tied to his leg. When he gets off his horse and starts talking it is tied to his right leg.
During full-speed chases on horseback a bunch of characters fire way more than six shots from their pistols, even though it would have been impossible to reload.