During the climactic scene, Brisco and Bowler pursue the lead gangster who is armed with a Mauser c/96 "Broomhandle" pistol. This weapon carries ten shots. During the chase, he fires twelve shots and never has a moment to reload.
A pair of gangsters kill a victim with Mauser c/96 "Broomhandle" pistols. These pistols weren't manufactured until 1896.