Trick question with a trick answer.
I answered Ruger. And not a semi-auto. The most recent handgun I've carried
chambered in .45 ACP, is a Sheriff's-length Birdshead New Vaquero.
If we were expected to answer relative to semi's, my answer might have been SR1911 CMD, and slightly earlier, I might have answered Kimber (CMD-size). They all work.
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