5.7x28mm Ammo

Introduced in 1991 by FN Herstal for use in their P90 PDW, the 5.7x28mm cartridge is very compact which allows for improved magazine capacity. The cartridge itself has a light bullet that travels at very high velocity. This makes it effective against most body armor.
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  1. Federal 5.7x28 Ammo - 500 Rounds of 40 Grain TMJ Ammunition

    Image For 500 Rounds Of 40 Grain TMJ Boxer Brass 5.7x28 Federal Ammunition


    $255.00 Price
    In stock now
    • 500 Rounds
    • Made by Federal
    • American-made Range
    • 51ยข Cost Per Round
    • Federal SKU AE5728A
    • UPC 50029465063127
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History of 5.7x28mm Ammunition

In 1991 the Belgian company of FN Herstal introduced the FN 5.7x28mm cartridge. The cartridge was created in response to a NATO request to replace the 9X19mm cartridge. With the increase in the use of kevlar body armor, the need for a cartridge that would defeat this armor was a priority. The 5.7x28mm met this need without a problem being able to penetrate a level IIIA vest at 200 meters. Along with its armor piercing capability and high velocity, the cartridge also has a lower risk of collateral damage as the bullet shape decreases the likelihood of ricochet. Another advantage is that most of the bullets’ kinetic energy has been expended after 400 meters, this is beneficial in that this cartridge was intended to be used in pistols and submachine guns where the effective ranges would not need to exceed 200 meters.

There are several advantages of the reduced size of the 5.7x28mm cartridge. Not only does the overall small size allow a solider to carry twice as many rounds of ammo when compared to 9mm, but the decreased size also gives the 5.7x28mm only half the weight of the 9mm. Also there is a substantially increased magazine capacity with the firearms designed to use the cartridge, the FN Five-Seven has a capacity of 20 rounds with a flush fit magazine, and the FN P90 submachine gun has a detachable 50 round magazine. 

Most of the 5.7x28mm ammo is produced by FN Herstal and is earmarked for Military and Law Enforcement only. The two types of ammo currently offered by FN are theSS195LF, which has a lead free bullet, and the SS197R that has a 40 grain Hornady V-Max bullet. This cartridge is manufactured by Fiocchi which is under contract with FN Herstal to make this cartridge for the US market. Federal produces a 40 grain Total Metal Jacket topped cartridge that is found under the American Eagle brand. There are other smaller manufacturers that produce the 5.7x28mm but none have made a large impact on the civilian market as of yet.

The velocities that can be achieved by the 5.7x28mm vary widely with the bullet type. The SS190, with its 30 grain bullet will reach 2350 feet per second while the SB193 that has a 55 grain bullet comes in at 1000 feet per second. The civilian and military loads that use 40 grain bullets come in right at 1900 feet per second. Muzzle energies range from 394 foot pounds of energy to 120 foot pounds of energy.

Although not a heavy hitting round, the 5.7x28mm is compact, accurate and has very mild recoil. With the extended magazine capacity , this cartridge is well suited for the personal defense weapon role. It is currently in service with over forty countries in the P90 PDW. This weapon is also popular among American law enforcement agencies; it is also used by the US Secret Service. With this kind of acceptance, it is likely that many other firearms chambered for the 5.7x28 will be coming to the marketplace and this unique little round will continue to keep its place in the firearms world.

Discuss 5.7x28mm ammunition by adding your comment to the 8 comments below or by asking a new question

Todd James Woodworth ( Tue, 08 Jan 2013 20:12:44 +0000 ) : I'm looking at a AR five seven for sale. but having trouble finding the ammo. 5.7 x 28. any ideas where I can fine some?
Dick Gunter ( Tue, 08 Jan 2013 20:14:44 +0000 ) : You need IT
Dick Gunter ( Tue, 08 Jan 2013 20:15:36 +0000 ) : You don't need IT
Todd James Woodworth ( Wed, 09 Jan 2013 20:26:03 +0000 ) : thank you.
George Mills ( Thu, 14 Feb 2013 16:46:03 +0000 ) : Not only can you not find 5.7 ammo, no one sells reloading components such as brass. The projectile is a.224 but very few bullet or propellant manufacturers show reloading data. However, Accurate & Ramshot Powder have limited data. Personally, I police my brass and reload with AA#5 & Barnes 30gr "Varmint Grenade". :-)
Les Bako ( Sun, 24 Mar 2013 08:09:17 +0000 ) : ok anyone and I mean anyone that can reload 5.7x28 please email me I have both the pistol and rifle I love them both but cannot find new ammo anywhere I have found a few ranges thatll sell me once fired brass but I cannot find dies powder info or projectiles I'm down to 500 rds of new n like I said I love both guns so any info please email me at 5537lb@gmail.com I could be a costomer for life.
George Bill ( Mon, 25 Mar 2013 15:33:24 +0000 ) : Not a good choice, it's too big to carry , too hard to get ammo for, and an ar is a lot more sensible in an offensive or defensive situation. If you need that type of rifle its an AR or AK.
Leland Tebo ( Sun, 14 Apr 2013 22:43:40 +0000 ) : eliteammunition.net... they can get you what you need if they have it in stock... also fivesevenforum.com for info