This goes for both home defense and target shooting. At the same time the 9mm is still and easy shooting and accurate round. More experienced shooters, or shooters focused on self-defense would be better served with a 9mm. These competitions involve defensive shooting tactics, quick draw, and speed over hitting a tiny bulls eye.
Choose best collection of 9mm ammo online at Outdoor Limited. Your cart contains 1 item. Login Register. Home Blog 9mm Ammunition: History, Specifications and types of 9mm ammo. Specifications Of 9mm Ammo With different bullet design, 9mm bullet have different weight, casing, and pressure. 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. There are a lot of terms, but knowing which terms apply to which cartridges will make you a more confident and informed gun owner, and will also enhance your enjoyment of all shooting sports! Let your fellow shooters know — share this article using the Facebook, Twitter and other social media icons below.
The more we all know, the better organized and stronger the shooting and hunting community will be. The Lodge AmmoToGo. Look for tips for the range here. About Us Contact Us. 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. Rim width matters because the rim can enhance nosedive. The rim of the upper round is normally positioned in the extractor groove of the underlying round when they are in the magazine.
During feeding, the slide pushes on the upper rim base of the cartridge. As the round is pushed forward, a rim wider than the case wall will drag on the underlying cartridge once it moves past the extractor groove. The push on the upper part of the rim and drag on the lower part of the rim combined with a nosedive gap encourages the cartridge to nosedive.
I tested several of these case designs trimmed to 9mm Luger length to assess the effect of rim width on feed angle. I selected cases with a rim of. Rim diameter measurements indicate rim diameter minus head diameter. Cases with rims less than. Cases were loaded with the Remington grain bullet as described above. One hundred and twenty rounds 0. The rims were not necessarily concentric with the case body.
That is, if the cases with minimal rims. Rotating the case to a different part of the rim eventually produced contact. Even the 9mm Automatic. I had no way to guarantee a consistent amount of rim drag during feeding. Thus, I left to chance the amount of the rim that would contribute to cartridge drag.
Therefore, in some instances with these cases there would be rim drag on the underlying round and sometimes not. The rims on the 0. Test results showed that wider rims produce lower feed angles see slideshow.
There was up to an eight-degree difference in feed angle round 5 between the rimless 9mm Automatic and the cartridge with the widest rim 0. Even cases with a minimal rim 0. Keep in mind that in some instances there was likely no rim drag for these cases because of the reason mentioned above. The fact that there is some evidence of lowered feed angle in this group suggests that even a minimal rim will enhance nosedive.
Thus, a true rimless case offers the best feed angle. I experienced no feeding malfunctions with the Remington FMJ round nose bullets during these tests. But as many shooters know, flat nose bullets can sometimes produce feeding malfunctions in guns that run round nose bullets reliably. I tested two different flat nose bullets with three different cases for feeding reliability.
The cases were Remington 9mm Luger tapered , Starline. The bullets were a Winchester 9mm grain JHP seated to 1. The Speer. The feed angle with the two different bullets was very similar, so the lines are the average of the two bullets. As one would predict from the previous results, the 9mm Automatic had the highest feed angles. The 9mm Luger had the lowest feed angles, and the 0. But more important was their feeding reliability.
Some rounds experienced nosedive feed failures where the round stopped dead on the feed ramp. The feed angles correlated with their feeding reliability.
The 9mm Luger brass, with its lower feed angle, had problems feeding both flat nose bullets. But the 9mm Automatic cartridge, with its higher feed angles, experienced no feeding malfunctions with either bullet. Thus, the lower the feed angle, the greater the likelihood of a feeding malfunction. These results show the clear superiority in feeding reliability with the straight-walled rimless 9mm Automatic.
Feeding reliability was also tested with a Diamondback DB9. The nosedive angle of the top round in a fully loaded six round DB9 magazine with a tapered 9mm Luger and a straight-walled 9mm Automatic is shown below. The 9mm Automatic has a six-degree higher cartridge angle.
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