"100 Rifles," a Western made by Americans but filmed in Spain, is an enjoyable movie, especially considering it was likely influenced by Sergio Leone’s popular Western films of the mid-1960s. While I don't think anything can truly surpass the impact of “The Good, the Bad and the Ugly,” this film has a more engaging narrative and feels tighter overall. The music is also noteworthy; Jerry Goldsmith’s score might not reach the heights of Ennio Morricone’s work, but it’s still quite impressive and was even reused in "The Last Hard Men." Raquel Welch looks fantastic here, and the filmmakers certainly made an effort to showcase her beauty through her costumes. However, Soledad Miranda also deserves recognition for her brief but striking appearance at the beginning of the film. She was a Spanish actress often associated with Jesús Franco’s low-budget European productions like “Count Dracula.” Sadly, she passed away at only 27 in a car accident near Lisbon in August 1970. The story unfolds during William Howard Taft's presidency, roughly fifty years after the end of slavery, so there aren’t any real historical issues with Jim Brown portraying a lawman taking on a position that others wouldn’t accept to advance his career. Although “100 Rifles” isn’t among my absolute favorite Westerns, it’s well-made and could be considered Burt Reynolds' finest work in the genre. There’s plenty of action set in the Southwest, and Jim Brown proves to be a surprisingly capable actor. Plus, having Raquel Welch and Soledad Miranda at their best is definitely a plus. The movie has a running time of 1 hour and 49 minutes and was filmed in Andalucía, Spain (Almería and Granada), as well as Madrid. The impressive monastery ruins and the exciting train wreck at the end were both shot in Madrid. I’d give it a grade of B/B-.

Source on TMDB