Reading John's comments reminded me that I was not a big reader of American cowboy comics when I was a young boy. There were British cowboy comics, some of which were reprints in b&w of American titles, I'm sure, but most were British made, and a lot of them were crudely drawn. The exceptions being Cowboy Picture Library, the digest series which featured some top class art, and the Billy the Kid stories that we have on CB+, and Jeff Arnold/Riders of The Range in Eagle. But titles like Western Super Thriller featured not very well drawn cowboy stories and the saving grace of this title was the Ace Hart stories that turned up. Talk about cowboys and dinosaurs, in WST you got cowboys and super heroes. Pity they weren't in the same stories.
Occasionally, you'd see a Dell in a wee, back street newsagent but I'd never seen Fawcett westerns here.