I think the misnomer of long colt was started due to the use of 45 Schofield cartridge at the time, also in revolvers by colt at the time.not .45 "Long" Colt. There never was a .45 "short" Colt, hence no .45 "Long" Colt, just .45 Colt. There is a .45acp though. Send me to the woodshed if I'm wrong, lol.