When Daniels (Royal Dano) is assigned to sneak out of the cabin and find a way through the nearby pass to go and get help, Sheriff Ryker (Clu Gulager) takes his only gun, a six-shooter which has distinct handle plates, and gives it to Daniels. Yet in every subsequent shot of Ryker, long after Daniels has gone, the same gun is back in his holster.
When Ryker goes out to retrieve Shotgun, he empties his pistol and the throws it away to drag Shotgun back into the cabin. When back in the cabin, Ryker's pistol us back in its holster, but he never actually retrieved it.