Note that you your referenced advertisement even refers to something identified as a .45 Long Colt. There is no such cartridge. Never has been. Never will be. Nor is there a .45 Short Colt, .45 Medium Colt, .45 Extra Long Colt or .45 Extremely long Colt.
For all you folks out there that insist on the right to rename cartridges, should the .45 GAP be renamed the .45 Short ACP or the .45 Short Auto?
Maybe you and your friends (got any?) can rename the the .357 Magnum as the .38 Long Special.
Or maybe you’re so bent out of shape on nomenclature for the same reason kids get so bent when you get the words to their pop songs wrong.....
Shupnoob
I don’t know what rock you have been hiding under. ACP and Long Colt have been around for a long long time.
I have always referred to my pistols with this caliber as such.
Give it up.
MFO
That was just one example of many you can easily find on the net if you search for ammo sellers.
These are successful business people who sell ammunition for a living - they know their market.
The term 45ACP is still the most common term in use for that .45 cartridge.
If people didn't know what the ammo sellers meant by "45ACP" you can bet they would change the terminology.
They don't care about the dictates of some oversight organization - they care about writting ads their customers find useful in finding and purchasing the ammo they want.
Your obsession that others use a term that you consider proper but is not the most common or popular usage reminds me of Barack Obama.
Ever notice how Obama and perhaps two or three other people in his administration insist on using the term ISIL instead of ISIS like the other 7 billion people in the world?
45 Long Colt,,
Funny, I have a box of That !
There is a .45 short also referred to as .45 Italian.
So we have
.45 Long Colt
.45 Schofield
.45 Short