When Tyrel faces Reed Carney, when he gets the drop on Carney and tells him to unbuckle his gunbelt, the holster is tied down for a fast draw. Carney reaches for his belt buckle, the camera cuts to a shot from the front as he unbuckles the belt. The next shot is from behind, and the holster is no longer tied down, with its tie down strings hanging loose.
When Tell Sackett is in his gold camp in the mountains, checking his fish traps, etc., he wears his spurs constantly, despite the fact there is no reason he'd be riding his horse during these activities. Spurs serve no purpose when not on horseback, and in fact, they would be a liability while he is climbing up/down the sheer rock cliffs around the camp. Not only that, they make a significant amount of noise that could draw the attention of whoever he suspects is following/watching him. He should remove them until he's ready to head down the mountain and ride back to town.
When Orrin is talking with Ma at home, the sun is low in the sky with a look of afternoon, but when he mounts his horse to ride out, the sun is high in the sky as if midday.