What is the difference between 9mm and 9mm luger

Overpressure rounds create significantly higher chamber pressures, so you should only load them once you have made absolutely certain your weapon can handle them. Also be cautious with handloaded ammunition, which may not bear a headstamp that indicates whether it is overpressure. Hi John — it sounds like you are a new gun owner, congratulations! I would suggest you check out a training class. Hi John, Armscor makes quality ammo that most shooters have no issues with at the range for training.

Would the 9mm CCI Shotshell meant for shooting snakes and small rodents at close range be suitable to stop a threat from a human attacker? I think not. Jerry, 9mm Luger and 9mm are literally different names for the same thing. That said, differences from manufacturer to manufacturer can have an impact on performance with specific firearms. The amount of powder charge in specific loads can also play a role. I accidentally bought 9 mm rounds for my Beretta PX4 storm pistol and the bullet got jammed into the barrel.

I have reloaded thousands of 9mm and I can tell you first hand the 9mm Luger will not completely chamber into the 9mm barrels of my Colt Commander , my Glock 19 or my Walters Match Pro Steel. The Luger cases are just a pinch longer.

As of this writing, I will try to trim the 9mm Luger so it will fit. It is very similar in power level to a. In the United States, there is little reason to buy a firearm chambered for 9mm Makarov other than nostalgia.

This cartridge is also commonly referred to as the 9x18mm. Some foreign countries do not allow civilians to own firearms chambered in cartridges issued to their police and military. The 9x21mm represents a very minimal change from the physical shape and ballistics of the 9x19mm but is different enough to bypass these laws.

What makes the. While the bullet is. The major drawback of the. There are other 9mm cartridges out there, but it can be a challenge to find both ammunition and firearms for them. If I were to briefly inject my own opinion, I would strongly recommend a new shooter buy a firearm in 9mm Luger, as opposed to any other cartridge listed here. No advantage presented by any other 9mm cartridge outweighs the access to cheap, plentiful practice ammunition that 9mm Luger offers.

When in doubt, check what is stamped on the barrel. For odd-ball or vintage firearms that you are unfamiliar with, consider speaking with a gunsmith. My name is Adam Hymas and I am a gun enthusiast.

Designed by the famous John Browning, most people will know this cartridge as the. Other names for the cartridge in include the 9mm Short, Corto, Kurz, or 9x17mm. For this reason, the two are not interchangeable. At 23 millimeters in length, this cartridge is not interchangeable with the 9mm Luger. This round has different dimensions all around, including bullet diameter and neck diameter compared to the 9mm Luger.

It should load perfectly in any weapon designed for the cartridge. However, because 9mm NATO is a military round, manufacturers load it to higher pressures. This delivers greater velocity and energy. You may want to make sure your 9mm handgun is rated for higher pressures before you purchase and use 9mm NATO rounds. If you are not an expert, the firearms industry can seem a little intimidating. However, understanding the various definitions for ammo choices will help you communicate with other firearms enthusiasts and will be useful when you are looking to purchase.

But all these efforts have overlooked the obvious: All that is required for an immediate improvement in feeding reliability is to get rid of the taper, and here is the data to prove it. I conducted extensive tests with a prototype cartridge that demonstrate clear benefits of creating a new 9mm cartridge with straight walls.

The benefits are impressive. A straight-walled case dramatically improves cartridge feed angle and feeding reliability.

A prototype straight-walled cartridge was made from. The case wall and rim diameter of the. The prototype cartridge was made by trimming the Lapua cases to 9mm Luger length of up to 0. When loaded, the prototype cartridge will be referred to as the 9mm Automatic 9mm Auto.

In concert with creating this prototype cartridge, functional tests were conducted to assess to what degree cartridge dimensions affect feed angle and feeding reliability. These tests examined cartridge taper and rim width.

I prepared special ammunition for these tests in order to maintain a similar overall length profile. The test ammunition, except for one factory load, was handloaded with Remington grain FMJ round nose bullets to 1. Five different tapers were tested: no taper 9mm Automatic ,. Brand new Remington 9mm Luger brass averaged 0.

These cases were not sized prior to loading in order to maintain their original shape of straight, non-parallel sides sized 9mm Luger brass often results in "hour-glass" shaped loaded cartridges. The profile of the Federal round was very similar to the handloaded cartridges, and was used as an example of factory ammunition.

When sized with a. A second group of fired 9mm Automatic cases was partially sized until they had a 0. Cartridge feed angle was measured from high-speed frames per second video. Feed angle is defined as the lowest angle the cartridge achieves prior to hitting the feed ramp.

The camera recorded cartridge behavior as it was stripped from the magazine. The test gun was a custom-built Caspian single column pistol with a ramped 9mm Luger barrel. A single McCormick. This condition permits maximum nosedive, which allows for an evaluation of the effect of different cartridge dimensions on feed angle.

Also, some shooters including the author use. A total of rounds were video recorded and analyzed for feed angle. Feed angle for all cartridge designs is lower when more rounds are in the magazine. This occurs because the nosedive gap gets bigger as more rounds are loaded in the magazine regardless of taper. However, the nosedive gap is greater with tapered cartridges, and more taper means an even larger gap.

The larger the nosedive gap, the greater the nosedive and the lower the feed angle. In the figure below, the feed angle of the 9mm Automatic black line is at the top of the other lines at nearly every point, indicating a consistently high feed angle.

The plotted values are the cartridge angle relative to the magazine feed lips. The angle of the tapered cartridges was adjusted in order to show the angle of the measured cartridge's central axis on this and subsequent figures. The important feature in the figure is the large difference in feed angle between most of the tapered cartridges and the straight-walled 9mm Automatic when there are four rounds and more in the magazine.

The difference in angle can be quite large, up to over seven degrees round 5 with the most tapered brass 0. The 0. Even a taper as small as 0. The least amount of taper 0.

Note the slight improvement in feed angle for some of the more tapered 9mm Luger cartridges with rounds in the magazine. This is an artifact of it being a 10 round capacity magazine, as this improvement was not evident in a 15 round single column magazine that was tested. Presumably, when the magazine spring is near full compression, the pressure can affect the feed angle of tapered cartridges.

Several straight-walled. Thirty-eight Super Comp Starline and. However, they have slight rims that measure about 0.

By comparison, the. The 9mm Steyr is another straight-walled case, and Barnes indicates a rim 0. Actual rim width varies somewhat in all examples.