I think they didn't include the .45 ACP because most people defend themselves with a .45 by just showing the cartridge and the bad guy passes out from fear that if shot it will kill their soul. They rarely need to be shot after that. Even the mere mention that you know what a .45 ACP looks like and most bad guys run away and their hair turns white. (/s)
The tacnuke of small arms isn’t 45. It’s 357 magnum. It’s beyond dispute.