Unlike yourself, I realize that common usage serves the purpose of communication just fine, and I don't feel any need to nitpick others in an attempt to fluff my own status. I'm sure you go into a tizzy concerning calling removable magazines clips, but I don't. The only possible confusion would with weapons using both (M1 carbine, M1A1, etc.), otherwise it is a difference without functional distinction.
To say “.45 ACP” has absolutely no possibility of being misconstrued and is in fact still used quite widely. Only someone chock full of themselves would insult another person's intelligence for using it. I tend to use it, as it is period to the weapons I own.
The most intelligent people generally don't feel compelled to be terminology Nazis, when no differentiation in meaning exists. You might know more about firearms than I do, but I seriously doubt it. Sadly, we will never know, as you are incredibly unpleasant to talk to.
No, it does not. Words have specific meanings that can be critically important concerning safety issues.
"To say “.45 ACP” has absolutely no possibility of being misconstrued and is in fact still used quite widely."
To believe that the .45 ACP, 45 Auto, .45 Auto+P and Cartridge Ball, Caliber .45, M1911 are the same cartridge because their dimensions happen to be similar is an irresponsible misconstruement of a high order. Each has a different maximum pressure specification. Three of those cartridges were/are pressure tested with entirely different units and techniques whose units are not interchangeable.
You seem to be advocating a violation of the first rule of firearm safety. Every carton of ammunition manufactured by a SAAMI member incorporates some form of the warning, "Use this ammunition ONLY in firearms marked and chambered for use of this cartridge."
Read the headstamp, stupid! If your firearm is marked "45 ACP" then that is the ammo you should use. As an aside, virtually none of the gunwriters or gun nuts in general seem to be aware that the U.S. military has NEVER chambered ANY of their firearms for either the 45 ACP or 45 Auto. Not the 1911 series pistols, not the 1917 Revolvers, not the Thompson SMG's, not the Reising SMG, not the Liberator Pistol and not the M3 (Grease Gun) SMG's. ".... I don't feel any need to nitpick others...."
I corrected my kids inappropriate grammar even though I full well understood what they were trying to communicate. It is a responsibility of the educated to help raise the levels of others, especially when safety issues are involved. So yes, I will point your irresponsible misinformation posted on this forum.
"Only someone chock full of themselves would insult another person's intelligence"
I didn't insult your intelligence, of which I have little input to base an opinion. I did point out your lack of knowledge about the subject of which you wrote, because of the safety issues involved.
"You might know more about firearms than I do..." Yes
"....you are incredibly unpleasant to talk to...." Only because you came to a factual discussion unarmed