Actually he said Colt 45, not 45 Colt.
I guess Colt 45 could mean either ACP or long colt. As far as I know Colt 45 isnt an official designation.
And while I am on the subject, there really isnt anything officially called "45 Long Colt", though that term is commonly used to distinguish "45 Colt", the classic cowboy round, from "45 Short Colt", which is another round altogether.
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