5.7mm Vs 9mm - The introduction of the Ruger 57 sparked renewed interest in the 5.7x28mm round. FN created the 5.7mm to be a defensive round for the military, primarily for pistols and smaller personal defense weapons. This, coincidentally, is almost the same slot filled by the 9x19mm cartridge, one of the most popular rounds on the market today. So what (if any) are the advantages of 5.7 vs 9mm?
We often call 9x19mm ammo "9mm Luger", and for good reason. The German Army wanted a round with less punch, so George Luger widened the neck of his existing 7.62x21mm cartridge to make a 9mm diameter round. The P-08 Luger pistol and the 9mm Luger (aka 9mm Parabellum) became icons of World War 1, and later, World War II.
5.7mm Vs 9mm
Second-line soldiers soon adapted the Luger pistol for a second purpose, as a defensive gun. The "Artillery Luger" featured a longer barrel and higher capacity magazine, along with a detachable stock that, in effect, turned the pistol into a carbine. This, in turn, provided a more effective defensive option for second line troops operating at longer ranges.
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Additionally, one of the first effective submachine guns, the German MP18, used the 9×19 Parabellum round. The 9mm cartridge became popular after World War I, and even more so after World War II. It is now one of the most popular pistol cartridges in the world. This is the standard cartridge for most of the world's militaries, as well as the standard NATO pistol round. The 9mm became the standard pistol round for the US military in 1985, when it replaced, along with the Beretta 92FS, the iconic 1911 pistol, chambered in .45 ACP.
Widespread military use of the 9mm began to reveal some of its weaknesses. The 9mm is an effective pistol cartridge and is also a popular submachine gun cartridge. However, the 9mm was designed before World War I, an environment where modern methods such as body armor against bullets were not used.
The increased use of body armor during the Cold War led to interest in bullets that could penetrate bulletproof materials, such as the M855 5.56mm rifle round. Although the 9x19mm was effective on unarmored targets, it was easily suppressed by basic body armor. This led to interest in developing a cartridge for pistols that would be more effective against body armor than the 9mm round.
Enter the 5.7x28mm circle. Fabrique Nationale created the 5.7mm in response to NATO's need for a combination of ammunition and firearms that could be used by second-line troops in the field. At first, it seems that the reasons why the "Artillery Luger" was created are the same. This is. However, there is a big difference in the new specifications. The NATO requirement is for a cartridge that can penetrate Level IIIA body armor at a distance of 200 yards. Since the Phase IIIA was specifically designed to stop the 9mm round, a new type of cartridge was needed. FN Herstal of Belgium produced the 5.7x28mm round, along with the FN Five-SevenN and PS90 guns to fire it.
Rh Brad Point Drill, 9mm Dia, 57mm Length, 10mm Shank, Southeast Tool Se5709rh
Today, the 5.7mm armor piercing round is not available to the general public. So, let's compare some of the 5.7mm bullets available for sale and see how they stack up against the 9mm. What are some of the advantages of 5.7 vs 9mm? What are the disadvantages?
Almost universal acceptance and a 70 year head start have made the 5.7 in 9mm one of the most common calibers today. Ammunition manufacturers around the world produce a dizzying array of 9mm ammo. There are also 9mm pistols in every corner of the world, in all shapes and sizes.
Because of this popularity, the 9mm is inexpensive compared to other centerfire pistol rounds. There are usually several types of weapons available at any given time.
The 9mm is also an effective defensive round. Bullet technology has evolved to a point where 9mm hollow point ammunition has a proven track record. Trusted by millions of gun owners around the world.
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The big advantage is speed, and there's a lot of it. The 5.7mm round uses lighter weight bullets than the 9mm round. Instead of firing a 115 grain 9mm round at about 1100 FPS, the 5.7mm fires a 40 grain round exiting the barrel at about 2300 feet per second.
FN designed the 5.7mm round to have a ballistic profile more like a rifle bullet than a pistol bullet. The 5.7mm has a pointed tip and a boat-shaped tail that helps it penetrate the air, increasing its effective range.
The diameter of 5.7 vs 9mm makes a difference inside the pistol. A 5.7mm round is less than 2/3rd the diameter of a 9mm round. This means you can stack more of them inside a magazine. This means more rounds inside your pistol's magazine.
The 9mm round is not designed for longer distances. The shape of the nose is rounded, and the bullet looks a little squat when viewed in profile. This is not a formulation optimized for long-range shooting. For that reason, we use most long guns chambered in 9mm in close combat, not at longer ranges.
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5.7mm is the new kid on the block. Because of this, it doesn't have a wide variety of ammo available for it compared to the 9mm. Furthermore, the best ammunition for this, the SS190 armor piercing round, is not available for sale to armed citizens. The SS190 is considered "armored," and that's not the case for armed citizens, the ATF said. In addition to this, the cost per round of 5.7 vs 9mm is about 10% higher, which means less bang for your buck (literally).
As stated earlier, a pistol chambered in 5.7mm will have more rounds in its magazine than a comparable pistol chambered in 9mm. Recoil will also be lighter with 5.7 vs 9mm. These two facts taken together make a strong argument for the use of the 5.7mm pistol as a defensive firearm. But how effective is the 5.7 vs 9mm? We will shoot two guns, a 9mm CZ75 and a 5.7mm Ruger 57, and compare them at three different ranges. We also shoot two types of ammo in each pistol, a full metal jacket round and a protective round. We measured the velocity of each round using a Pro Chrony timer to determine the actual muzzle energy of each round.
The velocity of the 5.7mm round can be higher than the 9mm round. However, the bullet's lighter weight means it doesn't deliver the same amount of energy to the target as a 9mm round.
The 9mm round is not known for recoil, and the CZ75's full-sized metal helps control what little recoil there is. However, even the soft recoil of the 115 grain round in a full-size metal framed pistol is greater than the recoil from the Ruger 57. As you can see from the pictures below, recall from the CZ75 mild, but this is subtle. . even milder than the Ruger.
Group Head Gasket Seal
To test the defensive capabilities of 5.7 vs. 9mm, we shot five examples of each round in Clear Ballistics gel. The current FBI standard for defensive ammunition is that an effective defensive round must penetrate four layers of heavy clothing, and then pass through 18 to 24 inches of gelatin ballistics. To follow these protocols as closely as possible, we covered the face of the gel with four layers of heavy fabric and then shot the gel from 10 feet away.
Five rounds of 124 grain 9mm Sig Sauer JHP Shot 1: 23.125 inches of penetration Shot 2: 23.25 inches of penetration Shot 3: 21.125 inches of penetration Shot 4: 21 inches of penetration Shot 15: of 17 in. penetration
30 grain 5.7mm FN JHP Shot 1: 10 inches of penetration Shot 2: 10 inches of penetration Shot 3: 9.5 inches of penetration Shot 4: N/A Shot 5: Invalid
We found all 5.7mm rounds recovered in the gel with their bases facing the direction of movement. This showed that they were decreasing as they passed through the middle of the test. The tumbling motion increases the ammo's temporary wound channel. This is something that is very common with rounds that have the same profile as our test weapon. As a result of this unintended movement, two of the fired rounds were dislodged from the gel. We chose not to include them in the results. The three rounds we got from the gel did not expand. In addition, immersion significantly slowed all rounds within the medium. This caused them to lack the FBI's minimum 16 inches of penetration.
Sample 3mm 7mm 9mm 15mm 25mm 38mm 40mm 50mm Sheer Organza Edged Satin Grosgrain Ribbon Double Sided
On the other hand, the Sig Sauer 9mm weapon went 16 inches, and quite a bit further. The average penetration of this round is higher than FBI. Expand all the rounds inside the gel. We successfully recovered each of them from within the gel block.
One of the reasons NATO saw the need to replace the 9mm with something else was better performance compared to Tier IIIA body armor.
Level IIIA body armor is designed to prevent penetration from pistol rounds
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