9X21 Pistol Ammo Russian for Body Armor SP10 & SP11

9X21 Pistol Ammo  Russian for Body Armor SP10 & SP11

SP-10 armor piercing pistol ammunition
This development leads us back to pistol ammunition, but this time with improved penetration capabilities rather than stealth. The proliferation of body armor rendered most military pistols, with its ammunition being about 100 years old, almost obsolete. The one way to deal with body armor is to adopt smaller-caliber, high velocity bullets for both pistols and submachine guns. This gives additional benefit of flatter trajectory and lessened recoil, both beneficial for accuracy. At the minus side, the terminal performance of the small-caliber, light weight bullets is somewhat questionable. After initial test and research, conducted since late 1980s under the codename “Grach”, Russian armed forces adopted an improved version of the world’s most popular pistol ammo, the 9x19 Parabellum. First produced circa 1994, this version of the 9mm features an armor piercing bullet of proprietary design, and a powerful powder charge, which brings this cartridge, officially designated as 7N21, to the +P+ level, with peak pressures running up to 2 800 kg per square meter. Armor piercing bullet for 7N21 ammo features a hardened steel penetrator core, enclosed into bimetallic jacket. The space between the core and jacked is filled with polyethylene, and the tip of the penetrator is exposed at the front of the bullet, to achieve better penetration. Bullet of the similar design, but of lighter weight, is used in another service 9x19 cartridge, 7N31, which has been developed in late 1990s for the GSh-18 pistol, and latter was adopted for PP-2000 submachine gun. Another offspring of the ”Grach” trials is the 9x21 family of ammunition. Adopted by the Federal Security Bureau (FSB) of Russian Federation, this cartridge in its basic form, known as SP-10, is more or less a stretched-out 7N21 cartridge with improved performance; 9x21 ammo also available in AP-T (tracer) and SP-11 low-ricochet ball (with lead core) bullets. This ammo is used in SPS “Gyrza” pistol and in SR-2 “Veresk” submachine gun. cartridge metric designation bullet weight muzzle velocity
7N21 9x19 5.3 g / 82 grain 460 m/s / 1508 fps
7N31 9x19 4.2 g / 65 grain 600 m/s / 1967 fps
7N28 / SP-11 9x21 7.9 g / 122 grain 390 m/s / 1278 fps
7N29 / SP-10 9x21 6.7 g / 103 grain 430 m/s / 1410 fps

Pictured above are the:
9mm SP-10 AP cartridge (right) compared to 9x19 Parabellum cartridge (left)

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6 years 4 weeks ago, 2:33 PM

samD

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Snake 9X21 Info

Look here!

6 years 4 weeks ago, 2:49 PM

Anonymous

SamD

Thanks, At least there is someone here to help me in my time of need. Thanks.

6 years 4 weeks ago, 2:54 PM

Reaper308

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time of need?

what the hell is that suppose to mean SS? you crackin on us?

"Proelium Comminus Auctoritate" "Sometimes the light at the end of the tunnel is a muzzle flash."
6 years 4 weeks ago, 3:11 PM

samD

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Hey he didn't

have the .99 cents that Greasy wanted for the info. So I hepped him....

6 years 4 weeks ago, 3:10 PM

Anonymous

Reap

nah not crackin. Just glad that some one is helping me. why do ya think im crackin'?

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