The Wind River Kid by Will Cook

You either worked for Cadmus Rindo and liked it, or you owed him money and you hated him. Old Cadmus owned the town of Rindo's Springs and everyone in it - until the day he picked a nameless drunk out of the jail and set him up as sheriff. The nameless drunk turned out to be a deadly gunslinger called the Wind River Kid, and old man Rindo found he had a tiger by the tail!