A .44 Automag also featured prominently in a comic book series from 1975 "The Warlord". From WikipediaLong before Dirty Harry was The Executioner book series. The Automag was the signature pistol of the series hero, Mack Bolan a.k.a. AndyC.
"Vietnam War veteran SR-71 pilot Travis Morgan passed through a hole in the Earth's crust while flying over the north pole in 1969[13] and landed in the underground world of Skartaris, a place strongly reminiscent of Edgar Rice Burroughs's Pellucidar. There Travis, wielding his .44 AutoMag pistol and joined by Shamballah's Princess (later Queen) Tara, a scantily dressed savage, became The Warlord and fought villains such as the evil sorcerer Deimos as well as various kings"
It was a pretty good series. and an Automag looked mighty good in a sword and sorcery setting.
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