This has been beaten to death over the years. IIRC, and I may not, Mike Venturino listed examples, in one of his articles or books, of the 45 Colt being called the "Long Colt" back in the old west era. I think he also may have found examples of cartridge boxes so designated. To me, that settles the issue. The term was evidently in usage on the frontier, how commonly, I don't know. I have always preferred "45 Colt" myself, because I'm not into drama, but that's just me. Either term is fine.
