Sartana and His Shadow of Death(1969)

Original title: Passa Sartana... è l'ombra della tua morte

Geoffredo Scarciofolo (using the pseudonym "Jeff Cameron") is the famed gunfighter Sartana, who is offered a chance at amnesty from the $12,000 bounty on his head if he wipes out Benny Randal, his brother Baby Face, and an equally nasty sheriff.