Hi, Lou. That could be the case. The production company is the same one which made The Lawless Years, which has been released on DVD by Timeless. I remember that the first episode was about a Gatling gun, and I remember thinking that Davy Crockett could have used one at the Alamo!
A few which come to mind:
The Richard Boone Show
Hec Ramsey
Michael Shayne (a rarity in that many of the scripts were adaptations of Brett Halliday's novels)
Boots and Saddles (1957-58 syndicated series about the cavalry in the Arizona Territory)
I've been pleasantly surprised by how many...