Military Review

US Subsonic Cartridges

23
From publications in the Russian-language press, it can be concluded that the cartridge 9х39 is the best invention of the century, and a potential adversary has nothing to oppose.


Unfortunately, this is not so: the developer of ammunition from this very enemy is much more than in the whole of the former USSR. And these people in many cases know their business very well.

Therefore, I wanted to make a small review of potential subsonic ammunition that can be used by the Americans (except for standard army 5.56x45 or 7.62x51).

Firstly, they have ammunition that can be used in standard AR-15 / M4 / M16 / HK416 rifles by simply changing the apper.

Stand alone here .300 AAC Blackout (300BLK): it was created as a cartridge, giving great advantages to the soldier, rather than the standard 5.56x45. In fact, this cartridge 7.62x35.

It is quite versatile. With a relatively light 125gr bullet (8 g), it starts at a speed of about 675m / s and a muzzle energy of the order of 1850 joules, recalling the ballistics of the cartridge 7.62x39.

In the case of the use of a heavy subsonic bullet weighing 220gr (14 g), it starts at a speed of 310m / s and a muzzle energy of the order of 670 J.
This cartridge was created by pereobzhimom cartridge sleeves 221 Fireball or .223 Rem, followed by trimming to a length of 35 mm. The simplicity of the operation allows it to be carried out at home, and the use of a standard cartridge sleeve 5.56x45 or .223 allows the use of standard magazines and standard rifle bolts.

US Subsonic Cartridges


Moreover, the use of a standard caliber allows the use of any .308 caliber bullets, from armor-piercing to the most exotic.
The high ballistic ratio of heavy bullets of the .308 caliber of the same Hornady 208Gr A-Max or Lapua B416 200Gr or similar type allows at least the same effective shooting as the US caliber 7.62x39



In addition, this cartridge allows the use of much more slaughter bullets than the standard US bullet.



Here, for example, is an American device for quietly shooting opponents in the .300Whisper caliber, which is almost identical to .300Blackout:





In addition, a direct competitor 9x39 is a cartridge .338 Specter - in the metric system it can be called 8.7х32mm. The sleeve of this cartridge is created by pereobzhim and trimming the sleeve of the cartridge 10mm Mag.

This cartridge can use both fairly light bullets weighing 10,4 g at a speed of 550m / c, and bullets weighing 19,4 g at a speed of 315m / c, which greatly exceeds the weight of bullets of 9x39 cartridges.

Bullets that can be used in this cartridge may have a significantly better ballistic coefficient. Therefore, it is possible to count on a more accurate and long-range shooting.

(.338LM, .308Win, .338Spectre)


Well, and besides this, there is a cartridge .458SOCOM, which has no analogues in the lineup of cartridges of the former USSR.

A rifle with a barrel of standard length in 16 ”fires a bullet weighing 19 g at a speed of 655m / c with muzzle energy of the order of 3500J. In the case of a subsonic cartridge, such a rifle sends a bullet with a weight of 39 g at speed of 305m / s and muzzle energy of 1800J (against 650-850J from SP-5).




In addition, the Americans have not forgotten and large-caliber cartridges for long-range and silent shooting.

Now they have a cartridge .510 Whisper (on a par with many others). This cartridge, as well as the Russian 12.7х54, is based on the cartridge case of the .338Lapua Magnum cartridge, with the difference that the sleeve was cut to 48mm instead of 54mm in the Russian cartridge.

When firing a Sako TRG-S rifle assembled in this caliber over a distance of 600 yards (550), accuracy was achieved in 1MOA (roughly speaking, 13 cm).

centered in comparison with Russian 12.7х54


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  1. the47th
    the47th 29 October 2013 10: 17
    0
    The .300 AAC Blackout is a purely civilian cartridge, it is not used by any US power units, and the .458 and .510 are more likely analogues of 12,7x55 than 9x39.
    1. vanaheym
      29 October 2013 11: 26
      +4
      Well, it’s hard to say what they use and where and what not. At least, such a packaging in the M2A1 boxes is not a civilian packaging for cartridges.
      1. Timeout
        Timeout 29 October 2013 11: 58
        +1
        This is the so-called "army" packaging from Robert Silvers. But only the Pentagon will never purchase these cartridges. Packaging does not provide storage under critical conditions. There is no military order mark on the box.
        1. vanaheym
          29 October 2013 12: 29
          0
          In fact, as far as I know, the factory 220Gr OTM Subsonic releases Remington, which has a pretty good relationship with the Pentagon.
          1. Timeout
            Timeout 29 October 2013 12: 52
            +1
            After the cartridge has passed civil certification, 110 companies are releasing it!
            And this is the packaging specification from Robert Silvers.



            Cut from the booklet of this company!
            1. vanaheym
              29 October 2013 13: 11
              0
              Advanced Armament generally does not produce cartridges in industrial volumes due to the lack of cartridge production as such.
              Their main business is the production of silencers, appers to the AR-15 and barrels for rifles.
              .300BLK is their joint project with Remington, which, like AAC, is part of the Freedom Group. And it is this particular cartridge that is manufactured - at the Remington factory.
  2. makarov
    makarov 29 October 2013 10: 34
    +2
    It is, of course, stupid to say categorically that only we have "this and that".
    And at the same time, I think that we should not forget about the comparison of the 300 AAC Blackout (300BLK) 7.62x35 and the cartridge for the STG-44, StG 45 (M) 7,92 × 33 mm (7.92x33mm Kurz).
    In my opinion, they have something similar. Only the Germans developed theirs early.
  3. Timeout
    Timeout 29 October 2013 11: 23
    +2
    and bullets weighing 19,4 g at a speed of 315 m / s, which significantly exceeds the weight of bullets cartridges 9x39.
    3 grams, is that significant? For some reason, the article does not indicate that all of the described cartridges are not accepted for service .... About .458 SOCOM forgot to write that the bullet has a lively shape and the trajectory is like a ballistic missile. So it’s impossible to talk about any armor-piercing or aimed shooting at a range.
    1. vanaheym
      29 October 2013 12: 10
      +1
      Quote: Timeout
      About .458 SOCOM forgot to write that the bullet has an animated shape, and the trajectory is like a ballistic missile.

      Ammunition with a different design of the bullet is produced for it, including normal boattail.
      Quote: Timeout
      3 grams, is that significant?

      With a slightly smaller caliber and the same ballistic coefficient, a difference in weight of 20% gives certain advantages.
      Quote: Timeout
      For some reason, the article does not indicate that all of the described cartridges are not accepted for service

      All these cartridges are quite fresh - the same .300BLK was standardized by SAAMI only in 2011. The rest did not even get to this. And how and where they are used is xs, but at least there are photos of 7.62x35 cartridges (.300BLK) in standard army boxes, which means they are used somewhere, they just don’t tell us.
      1. Timeout
        Timeout 29 October 2013 12: 32
        +2
        Quote: vanaheym
        the same .300BLK was standardized by SAAMI only in 2011.

        SAAMI - Sporting Arms and Ammunition Manufacturers' Institute has nothing to do with the army. This is a purely civilian institution and it works in conjunction with the agency of national standards, developing criteria for manufacturers of weapons and ammunition. Everything that develops the troops goes through the engineering and technical commission under the committee of chiefs of staff. And the SAAMI certification only says that the military has already played enough with this cartridge and gave it to the civilians.

        Quote: vanaheym
        but at least there are photos of 7.62x35 cartridges (.300BLK) in standard army boxes, which means they are used somewhere, they just don’t report to us.


        This is a shot from the cartridge manufacturer.
        Quote: vanaheym
        With a slightly smaller caliber and the same ballistic coefficient, a difference in weight of 20% gives certain advantages.

        Since I had to shoot from all the specified nomenclature: SP-5 is not a crown of ballistics, but compared to the cartridges described it’s Faberge. And they will catch up for a long time.
        1. vanaheym
          29 October 2013 14: 11
          +1
          Quote: Timeout
          SAAMI - Sporting Arms and Ammunition Manufacturers' Institute has nothing to do with the army. This is a purely civilian institution and it works in conjunction with the agency of national standards, developing criteria for manufacturers of weapons and ammunition. Everything that develops the troops goes through the engineering and technical commission under the committee of chiefs of staff. And the SAAMI certification only says that the military has already played enough with this cartridge and gave it to the civilians.

          The Americans generally do not have military manufacturers of ammunition, nor purely military ammunition - everything is done at private enterprises and everything is available for sale, with the exception of special ammunition such as incendiary or armor-piercing.
          SAAMI is primarily an organization for the standardization of ammunition, chamber, acceptable pressure, and so on among its participants, which are the main manufacturers of army weapons in the USA (Remington, Colt, S&W, Beretta, Browning, Glock, etc.)
          Therefore, the standardization of the SAAMI cartridge is just the standardization of the release by different manufacturers and is rather a step towards acceptance into service, and not to the fact that the military has played enough.
          By the way, 7.62x39 is also standardized by SAAMI.

          Quote: Timeout
          Since I had to shoot from all the specified nomenclature: SP-5 is not a crown of ballistics, but compared to the cartridges described it’s Faberge. And they will catch up for a long time.

          Let me doubt that someone here in the open spaces xUSSR fired a weapon under .338Spectre or .510Whisper - the cartridges are new, at the moment these are wildcats, are not mass produced by any company, the matrixes for forming cartridges are produced only on order with a two-month wait for RCBS or CH4D.
          Of the .458SOCOM, I personally have not yet managed to shoot, although in Ukraine they produce rifles for them and appers for the AR-15.
          If we talk about .338Spectre, then judging by the ballistic calculator Applied Ballistics cartridge turned out to be very good.
          1. Timeout
            Timeout 29 October 2013 16: 06
            0
            If you were a little more curious, you have requested http://www.saami.org/index.cfm from this link and have read such a thing.

            Welcome!
            Institute for Sporting Arms and Ammunition Manufacturers (SAAMI) is an association of leading national manufacturers of firearms, ammunition and components. SAAMI was founded in 1926 at the request of the Federal Government, which is entrusted with:
            Creation and publication of industry standards for safety, interchangeability, reliability and quality.
            Harmonization of technical data.
            Promoting the safe and responsible use of firearms. Technical excellence is our goal, safety is always a must. SAAMI supports scientifically based solutions to many of the problems associated with firearms, ammunition and their components.


            Shoot at the expense, read through the post!
            1. Timeout
              Timeout 29 October 2013 16: 40
              +3
              On account of "wildcat" you have rather strange information. 338 Specter is produced by almost all leading manufacturers, but the demand for this ammunition was quite small and cartridges lay quietly on the shelves in almost all forms. But after Obamka's demarche, even they disappeared. 510 Whisper is produced by the developer in sufficient quantity to supply barrels with their own (SSK Industries).



              They can be ordered even via the Internet ...
  4. Genry
    Genry 29 October 2013 11: 24
    +4
    The author somehow strongly went in cycles in cartridges. But practical interest is the comparison of weapons-cartridge complexes.
  5. specKFOR
    specKFOR 29 October 2013 13: 51
    +1
    Excuse me, Timeout! And you, probably, are serving in the US special forces once you do such kotigoric comments about the use of ammunition?
    1. Timeout
      Timeout 29 October 2013 15: 46
      +4
      No, dear, if you went a little along my profile, then such questions would not be asked. But for you and vanaheym I’ll explain that for some time I have been living in two countries (I work and I live in Paraguay more than a year), and anyone who has a saddle (residence permit) can buy as many hand small arms as his pocket allows, with good communication with the police, you can start and automatic. Since I am the owner of a small drilling and blasting company in search of contracts I have to travel to all countries of the aircraft with armed guards. So I personally have no problems buying and testing any trunk. And if it does, then I turn to my shooting club for help. Lastly, google 173 ooSpN. I hope the questions disappear.
  6. luiswoo
    luiswoo 29 October 2013 14: 16
    0
    Quote: Genry
    The author somehow strongly went in cycles in cartridges. But the practical interest is the comparison of complexes cartridge weapon.

    I agree, they didn’t even notice the elephant. Just a brief educational program, a little crooked ...
    Now they have a .510 Whisper cartridge (along with many others). This cartridge, like the Russian 12.7x54, was created on the basis of the cartridge sleeve .338Lapua Magnum - with the difference that the cartridge was cut to 48mm instead of 54mm for the Russian cartridge.

    It was created on the basis of the .416 Rigby 1911 year sleeve, as well as the .338 Lapua Magnum.
    1. vanaheym
      29 October 2013 19: 45
      0
      Based on the .416Rigby, they made an RAI cartridge, and in the .338LM there are quite large differences in the sleeve
  7. Walker1975
    Walker1975 29 October 2013 14: 58
    0
    And I liked the embroidered rugs with weapons in the photo. It’s a pity that they didn’t say about weapons :(
  8. tracer
    tracer 29 October 2013 15: 19
    +3
    Indeed, now a lot of information on this topic has appeared on the Internet. And this is good. Because few of the compatriots are familiar with the arms market of North America. With this huge machine for the production of weapons and ammunition. It is important to know how it works and what its advantages are, and that what it produces today is also good for knowing. A good and professional article is quite worthy of publication on this site. Comparison always encourages designers, manufacturers, and consumers alike. Due to the bone of the Russian arms industry, modern rifle systems are very few come into service. And their quantity is meserny in comparison with the North American manufacturer. The topic of the question is well developed in the article. Here it is necessary to think, and if one thinks about who depends on at least the production of these products, then the article generally needs to put all the pluses of the participants.
  9. uzer 13
    uzer 13 30 October 2013 00: 28
    +4
    In one country, everything is prohibited and 2-3 paramilitary enterprises are engaged in the creation of new ammunition, and then without much desire.
    In another country, the creation of these new ammunition is involved in tens of thousands of enthusiastic amateur sports enthusiasts, and even fine-tuning weapons.
    Where will weapons and ammo be better?
  10. Tyumen
    Tyumen 30 October 2013 00: 45
    0
    9x19Para - the cartridge is 115 years old, and it is still the main one. Though gloomy, but a genius.
    1. tracer
      tracer 30 October 2013 01: 24
      +1
      He (9/19 Luger) / not a genius. There are cartridges for a gun much better. It’s just the cheapest and most common. In addition, the shooter's best sense of return and bullet energy for medium pistol shot distances. In my opinion, pistols are gradually giving way to light rapid-firing machine guns.
    2. uzer 13
      uzer 13 30 October 2013 04: 22
      0
      At first it was necessary to make a cartridge for the Mauser 7.63X25 and shoot them well, and then make a cartridge for the luger out of it. Further increasing the ammunition power for the pistol did not make much sense, since the discomfort during shooting increased. The popularity of the 9X19 cartridge lies in the fact that it It is a reasonable ratio of power and the damaging effect of ammunition. But the widespread use of body armor can very much change the situation in cartridge-pistol cases.
  11. Herosw
    Herosw 30 October 2013 01: 24
    -2
    In the USSR, many silent and unique cartridges were developed that have no analogues in the world. And in the United States, how many officially subsonic armament cartridges are in service may be a couple (of which there can be many that are not being developed, and which are not accepted for service).