That's a pretty nice cover on this issue of COMPLETE WESTERN BOOK MAGAZINE by W.L. House, an artist I'm not familiar with. The complete Western book of the title is "Desert Guns" by William MacLeod Raine, backed up by short stories from B.M. Bower and Joseph T. Kescel, an author who is also unfamiliar to me. I like what I've read by Raine and Bower, although I haven't read extensively from the works of either author. I remember Jory Sherman talking about Bower, who was his great-aunt, I believe. "Aunt Bert", he called her, because her name was Bertha Muzzy Bower.
UPDATE: I discovered that I've featured this pulp before, back in 2012. Well, it was bound to happen eventually and probably has happened before now without me realizing it. The funny thing is, I said almost exactly the same things eight years ago. The more things change, etc., etc. . . .