Why does everyone say ".45 ACP"?

The 45 LC, 45 GAP and 45 super are a few reasons. The 451 Detonics and 460 Rowland changed the name a bit more to prevent confusion on their “45 super’s”

I put m/m into google and here's what I got.

"M&M'S Chocolate Candy - Official website."

Now we're talking.

As others have said, there are other .45s out there. Neither .45 Auto or .45 Colt can really be used as they are a lot closer to other cartridges. And of course just .45 can refer to any of them. In addition, ACP actually stands for the full real name of the round. Browning himself named the cartridge .45 Automatic Colt Pistol.

You may not like .45 ACP, but most people say that because that is the correct way of saying it. Personal preference or not, the other ways are just incorrect.

I know a lot of people who refer to the 9x19 cartridge as "9mil". That may be their preference, but that doesn't make it correct. Cartridges have real names. Anything outside of the actual name, no matter how you feel about it, is actually wrong. Words mean things.

I have a handful of 9 M/M head stamped cartridge cases. I don't know how old they are, just some odds and ends in a box of loose "stuff". It has been used for cartridge I.D., probably by a manufacturer trying to be different. Try stuffing a 9MM Luger in your 30 Luger chambered Luger.

duplication deleted, isn't that what we are talking about?

TX1911fan:...When did anyone ever write it as m/m? That makes no sense at all. The abbreviation for millimeter has never been, nor will it ever be, m/m.

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Au contraire!

Take a peekaboo at an older FN Browning firearm:
9 m/m on the Hi Power
6.35 m/m on the Baby Browning .25acp
7.65 m/m on the 1922 or 1910 .32acp

"m/m" is and was very much used as an abbreviation for millimeter on European firearms.

DoubleTapDrew How about calling 9mm: 380 Long, since .380 is called 9mm Kurtz (short) in some countries...

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Because there is enough confusion with the existing 9mm Long
http://en.wikipedia.org/wiki/9mm_Browning_Long





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I just call it Colt 45. Works every time...

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To me a Colt 45 is either a Malt Liqour beverage or a SAA revolver (as in .45 Colt, aka .45 Long Colt).

m/m is more common on European manufactured ammo. I believe it was RWS ammo I've seen it on. Probably on others as well.

Wyman

Walkalong said:

I have called it both, and don't get wound up up about either. Six in one, half a dozen in the other.

Want to get me rolling my eyes?

don't use capitals, proper punctuation. or proper spilling.

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The proper way to spill is called pouring

coagulations walkalong you hit the nail head on!!!!!!!!!!!

I work with a guy that swears Glock is the end all be all of handgun superiority. Swears that a Glock 37 is superior in every way to a 1911. He likes to say 45 GAAAP, pronounced fordy-five guh-AAP. Says they are way better than those old 1911 Long Colts.

why do people call a standard transmission a manual transmission, or worse a stick shift?

According to an a quick and dirty google search the word "Good" has 380 synonyms and "Drunk" has 2241 synonyms.

But the whole one company not wanting to advertise another company on their product makes a lot of sense.

FourteenMiles said:

why do people call a standard transmission a manual transmission, or worse a stick shift?

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Im southern so I understand when someone says they "cant drive a stick" so in my head I picture a tree branch with a steering wheel driving down the highway.

Refering to OP's post, my brother says Nine emm emm (9 m m).

Cause its the .45 automatic Colt pistol round, why don't you do a bit of reading on small arms development? Whats the difference between .45 Colt and .45 ACP? Know that?

http://en.wikipedia.org/wiki/.45_ACP
Here is a start, self loading pistols were kind of new when John Browning was working on this round.

This is a strange conversation.

I know silly arguments about minutiae are to be expected on a gun forum, but isn't this over the top even for that?

Jim Watson said:

.45 Auto is what other companies call it so they don't have to put any reference to Colt on their knockoffs, even in abbreviation.

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I never thought of that before. Makes sense to me.

Because that's the name of the cartridge.

When I'm with my bullseye buddies 45 means 45 ACP but when I around the cowboy guys 45 means 45 Colt Long. No big thing as long as you are all on the same subject.

Thanx, Russ

The correct way nowadays is "Fo Five".

For some reason, perhaps this goofy thread, I can remember seeing millimeters written as m/m while in school so very many years ago,,,

I have called it both, and don't get wound up up about either. Six in one, half a dozen in the other.

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Sort of like "Six OF one and half a dozen OF the other"....

As for M/M....some folk in other countries do it that way, same as they use a comma instead of a period as in '$99,00' .

Long before 'Eminem' thought about rapping his way out of the trailer park, Martha Johnson and the group M+M (Martha And The Muffins) were rocking Canada and the USA.

I do it to keep it clear that I am not asking for 45 long colt or 45 GAP, so I will keep calling it by its name 45 ACP.