Warbow is shown holding Mr. Clarke's rifle while he is talking to Chris, but when they say goodbye, Warbow waves and the rifle is not there.
When Private Jamie & Sgt Gault (Brian Keith) are holding off an attack, Jamie reaches around the corner of a large rock formation and takes a shot, however, no exhaust is seen as with the other shots being taken.
In the opening scene of a buffalo hunt, it is obvious that Clarke is not really riding a horse and shooting at the buffalo. He is sitting too still and the rider seen near him is a film projection.
Cooper Smith talks about a 30-30 that he had and yet this takes place 21 years before the 30-30 came out. The Second Battle of Adobe Walls was fought on June 27, 1874 and the 30-30 came out in 1895.