45 ACP or Automatic

[robert101]

[BigBronco]

HHmmm water or H20?

[stilly]

Making tough decisions is what being a man is about...


Potato Potato, Tomato Tomato.

I will go with Potato, but will carefully decide on Tomato...

And since I read it on the internets, I know it is true.

[robert101]

I just Googled 45 Automatic and pulled this from the SAAMI page, "http://www.saami.org/pubresources/cc_drawings/Pistol/45%20Automatic.pdf". It lists the cartridge as 45 Automatic and not 45 ACP.

[Fjold]

John Browning designed the cartridge in 1905 for Colt, who named it the 45 ACP. In 1910 the US military bought the colt pistol and called it the 45 automatic. I'm inclined to believe that the people who designed it have the naming rights.

[GunDog]

45 Automatic (45 Automatic +P/45 ACP)

Historical Notes This cartridge was developed by John Browning in 1905 and adopted by the United States Ordnance Dept., with the Colt-Browning automatic pistol, in 1911. It has also been made the official military handgun chambering by several other governments, notably Argentinam, Mexico and Norway. The 45 Automatic is the most powerful military handgun cartridge in use today. It is also one of the most difficult to master. The Colt Government Model auto pistol and its copies, as well as the Colt and Smith & Wesson Army Model 1917 revolvers are the principal arms chambered for the 45 automatic in the United States. Ruger, S&W, Springfield Armory, Glock, Numrich and many other companies now also offer guns in this chambering. Several submachineguns have used it. About 1943, a number of Reising semi-automatic rifles were marketed in this chambering. Imitations of the Colt auto pistol have been made in Argentina, China, Korea, Norway, Spain and the United States. It was replaced as of 1985 as the official U. S. military handgun cartridge by the 9mm Parabellum. However, it remains in U. S. Marine Corps service and has proven increasingly popular with police agencies in the United States.

General Comments The 45 automatic has been proven in combat all over the world as having excellent stopping power. It has also developed into a first-class match cartridge with accuracy equal to the best. It requires practice for the average person to develop skill with this cartridge, particularly when fired in some untuned semi-automatics. It is used far more for target shooting than hunting, its curved trajectory limiting its effective range. Despite this, it is quite adequate for any small or medium game. Like all the other semi-auto pistol cartridges, it is a better hunting round with softpoint and hollowpoint bullets. a number of police departments have switched from the 38 Special to the 45 Automatic in the last few years. All major and minor commercial ammunition manufacturers offer this cartridge. After several years of declining sales, it is enjoying a resurgence of popularity.

Source: Cartridges of the World, 10th Ed. by Frank C. Barnes/Edited by Stan Skinner

[rm1911]

As long as you shoot the cartridge out of a 1911 it doesn't matter.

[SonofWWIIDI]

It should be called "stopping power!".

[Lead Waster]

Historical Notes

...



General Comments The 45 automatic has been proven in combat all over the world as having excellent stopping power. It has also developed into a first-class match cartridge with accuracy equal to the best. It requires practice for the average person to develop skill with this cartridge, particularly when fired in some untuned semi-automatics. It is used far more for target shooting than hunting, its curved trajectory limiting its effective range. Despite this, it is quite adequate for any small or medium game. Like all the other semi-auto pistol cartridges, it is a better hunting round with softpoint and hollowpoint bullets. a number of police departments have switched from the 38 Special to the 45 Automatic in the last few years. All major and minor commercial ammunition manufacturers offer this cartridge. After several years of declining sales, it is enjoying a resurgence of popularity.

Source: Cartridges of the World, 10th Ed. by Frank C. Barnes/Edited by Stan Skinner

Uh, OK, when was this written?

['ol shooter]

Oh My Gawd! I'm so conflicted right now, do I load the cases that are stamped 45ACP or the ones that are stamped 45 Automatic? I know, I'll just load them both. I hope my 1911's don't notice.

[ARDude]

I have some friends who just call it "porty pive".

[micro911]

I use the term 45 Auto caliber.