The original title ran for 8 years and 59 issues. It started with issue #12, because it continued the numbering from the second volume of All-Star Western. It was published on a bi-monthly basis before achieving monthly publication with the November 1978 issue (#49).
Each issue has Neal Adams art, of course. Please feel free to download.

Download Weird Western Tales #12

Download Weird Western Tales #13

Download Weird Western Tales #15