The only western that Tony Curtis was to star in his long career was The Rawhide Years. In the tradition of B westerns I'm not sure what Rawhide had to do with the story.
Despite that, it's a decent enough western which starts out on a riverboat where Curtis is the protégé/come-on shill of gambler Donald Randolph. After feeling sorry for a sucker they trimmed one night, Curtis allows a friend of the sucker played by Minor Watson to win the money back. Later on during a pirate raid on the riverboat Watson is killed, Curtis thrown overboard and later suspected of Watson's death.
His fugitive status also puts his marriage plans on hold with Colleen Miller. Curtis comes back after three years and finds she's married to saloon owner Peter Van Eyck. But it all gets straightened out in the end.
Arthur Kennedy is also in The Rawhide Years, a rather rouguish trail companion that Curtis picks up along the way back to Miller. You're never quite sure whether he'll be friend of foe in the end. He gets the acting honors in The Rawhide Years.
In his memoirs Curtis liked doing the film as a change of pace from what Universal usually cast him in. And he liked hanging around with stuntmen who gave him some good tips about behavior in front of the camera. Something they have to know as well as the players they are doubling for.
The Rawhide Years is solid western entertainment a good credit in the Tony Curtis filmography.