.45 Calibre War is a 1929 American silent Western film directed by Leo D. Maloney and starring Don Coleman, Ben Corbett and Jeanette Loff.

[1] Reed Lathrop returns to his old home, accompanied by his friend, "Toad" Hunter, to investigate a plot that forces ranchers to sell their properties for very low prices.

Finding the ranchers demoralized, he organizes a vigilance committee and enlists the aid of the local circuit judge.

Darnell, the owner of the saloon, and Blodgett, a local dealer in ranch property, are unmasked as the culprits.

Soon a showdown takes place with the ranchers and the outlaws, ending with the criminals hauled off to prison.