Military Review

Anti-tank rifle Carl Gustav PVG M42

I will not be mistaken if I assume that everyone who is “shifted,” in the good sense of the word, on a gunshot weapons with non-standard solutions in the design, they know about the Croatian large-caliber rifle RT-20, in which exorbitant returns when fired are extinguished by means of a reactive exhaust of powder gases behind the weapon. For grenade launchers, such a system is quite familiar, but for a large-caliber rifle this is very rare. However, rarity does not mean that this is the only model with such an original design. As I often said, all that “has no analogues” has ancestors in the late nineteenth and early twentieth centuries. In our case, everything is somewhat different, although on the other hand, the Croats did not claim the absolute uniqueness of their weapons. “Relative” RT-20 was found in 1942 among the Swedish anti-tank rifles.

PTR with a similar method of damping the return appeared due to the active development of lung control tanks and lightly armored vehicles in Sweden. The company "Carl Gustav" has developed a truly original model of weapons and ammunition for it, and the anti-tank rifle itself was very light, about 2-3 times lighter than its compatriots, had a very tolerable return and at the same time could boast of breaking through 40 millimeters of armor at a distance of 100 meters. The most interesting thing is that the weapon did not even have bipods as such, if necessary, resting on the ground on the shoulder rest, a curved tube was put on, which served as a bipod. Well, now the most important thing is the ammunition of the weapon.

Especially for this anti-tank gun was developed cartridge with the metric designation 20x180R. Despite the fact that the ammunition had a sufficiently large powder charge, not all of it was used to disperse the bullet through the barrel of the weapon, much of it just flew into the air when fired, to counteract the exorbitant recoil that could be when using the same cartridge in a closed system, just break the bones arrow. Despite the fact that the powder charge is not fully used, the bullet weighing 150 grams accelerated to the speed of 800 meters per second. A lighter bullet, weighing 108 grams, accelerated to 950 meters per second. The results are quite good, and on condition of a reasonable return of the weapon, they are just wonderful.

Anti-tank rifle Carl Gustav PVG M42As mentioned above, recoil damping when firing a PVG M / 42 anti-tank rifle is carried out with the help of a jet of gunpowder gases emitted from the rear of the weapon. In the Croatian RT-20 large-caliber rifle, the powder gases are discharged from the bore through several holes into a separate tube. In the PVG M / 42 anti-tank rifle, everything is carried out simultaneously and simpler and more complicated. The simplicity lies in the fact that the jet exhaust is carried out immediately behind the barrel, without separate parts, which significantly reduced the weight of the weapon. The difficulty is that in order to accomplish this, I had to make a sleeve with a plinth, which the powder gases are knocked out. Thus, the cost of already expensive ammunition has increased significantly, and the quality of these cartridges should have been at the highest level so that the bottom of the sleeve would fly out exactly when it is required.

In itself, the PVG M / 42 anti-tank rifle is a very simple model, consisting of a barrel, a simple trigger mechanism and a bolt opening the chamber during a turn. The weapon is single-shot, which creates certain inconveniences when reloading due to the location of the shoulder rest. So in order to reload the anti-tank gun it was necessary to remove it from the shoulder, or to wait until the second fighter crawls out of the calculation for reloading and crawls before firing. It was necessary to crawl the loader a lot and quickly, since the jet stream escaping from behind the weapon could teach to move quickly. But, oddly enough, there were no cases when someone preferred to learn to crawl with such a tough motivator. In addition, it was not worth forgetting that the liner of the case flew out along with the jet, which, although it was flying close, could also have injured a fighter who was looking at the gap.

The weight of the PVG M / 42 anti-tank gun was 11 kilogram with a length of 1450 millimeters, so that the weapon could well be carried by one person, for which a carrying handle was welded on top. The length of the anti-tank gun was equal to 1114 millimeters, the effective range of use to 300 meters, however, it all depended on the goal that had to be reached.

Many consider this PTR unsuccessful, and a kind of mistake. With many arguments you can not argue, in 1942, the time of anti-tank guns was already coming to an end, and their effectiveness inexorably dropped to zero. On the other hand, in addition to tanks, there was also other armored vehicles, fortified firing points, after all, light tanks, at which the anti-tank guns were fired very effectively. Do not also forget about the grenade launchers, which continued the matter of the PTR, and with them this sample has a certain similarity. In other words, this anti-tank gun gave invaluable experience to designers in the fight against recoil in recoilless systems, and this is not enough. Yes, and the PTR itself has received a good distribution, since it was released 3219 weapons.
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  1. scrabler
    31 May 2013 08: 23
    Forgot RT-20 add image smile
  2. Vladimirets
    Vladimirets 31 May 2013 08: 38
    The cartridge (or is it still a shell?) Is the most interesting in this gun. I wonder what the bottom of the shell was made of?
    1. scrabler
      31 May 2013 08: 46
      It looks like textolite, but I will not argue.
      1. anomalocaris
        anomalocaris 31 May 2013 17: 08
        They are. Textolite with such dynamic loads scatters into dust.
    2. Akim
      Akim 31 May 2013 16: 44
      Quote: Vladimirets
      Cartridge (or still a shell?

      This is a shell. The bullet bites into the rifling with its shell, and the shell - the leading belt.
      1. anomalocaris
        anomalocaris 31 May 2013 17: 11
        Although this is a very controversial statement. There were and there are shells that are being cut along the rifles with their shell and there are bullets with a leading belt ...
        1. Akim
          Akim 31 May 2013 17: 22
          Quote: anomalocaris
          There were and are shells that are carried out on rifling their shell

          What kind? Who doesn’t mind the trunk?
          1. anomalocaris
            anomalocaris 31 May 2013 17: 37
            All shells of the 1867 system, all shells with ready-made protrusions, shells for systems with a conical bore, polygon systems ...
            1. Akim
              Akim 31 May 2013 17: 48
              Quote: anomalocaris

              All of this has very limited uses. Naturally, Nona's shells do not have a leading belt, but they do not "bite" either, but run along the "guides" of the rifling.
              1. anomalocaris
                anomalocaris 31 May 2013 18: 03
                But there it is. And this is such a dumb fact. About 20 years ago I myself tried to understand this issue, but the more I went deeper, the more I got confused. As a result, he realized the legitimacy of the postulated official position - up to a 20mm bullet, from above - a shell. Rough, simplistic, not always right, but it works.
                1. Akim
                  Akim 31 May 2013 18: 17
                  Quote: anomalocaris
                  up to 20mm - a bullet, above - a shell.

                  One could agree, but the MG 151 (considered a gun) initially had a 15 mm caliber. French air gun too.
                  1. anomalocaris
                    anomalocaris 31 May 2013 18: 28
                    So I’m talking about that - all names are conventions. By the way, the MG-151 was a bicaliber system. When replacing the barrel, it could be either a 15 mm machine gun or a 20 mm gun, again in our classification. But the Germans called both versions a machine gun ...
                    1. Akim
                      Akim 31 May 2013 18: 52
                      Quote: anomalocaris
                      again in our classification. But the Germans called both versions a machine gun ...

                      I don’t understand German, but in English: The MG 151 (MG 151/15) was a 15 mm aircraft-mounted autocannon.
                      And in Spanish: El MG 151 (MG 151/15) (acrónimo de Maschinegewehr 151, "Ametralladora 151" en alemán) era un cañón automático de 15 mm.
                      We can exchange (as a Ravist) the institute was wrongly taught, but the definition given above by me distinguishes an automatic gun from a machine gun.
                      1. Bosk
                        Bosk 1 June 2013 01: 16
                        As our commander told me ... "That which has a handle and a trigger is loaded with cartridges, and that which has a gun carriage or other elements of heavy weapons is equipped with shells", with rare exceptions this is approximately how it is.
                      2. anomalocaris
                        anomalocaris 1 June 2013 07: 07
                        Letters MG in the name, As you probably know, there is an abbreviation for Maschintngewer, literally translated "mechanical gun" by this term, the Germans, as well as the Anglo-Saxons (mashingun) call a machine gun. The Germans called the automatic cannons maschinenkannone and, accordingly, they had the abbreviation MK in their designation. Naturally, 20mm MG FF, MG 151, MG 213C used shells with leading belts, but were considered machine guns by the Germans.
                        At the same time, Gerlach’s rifle with a conical bore was fired with bullets with a leading belt, but no one calls it a shell, and the rifle itself is a cannon. Also leading belts (and two) have bullets for trunks with Fosbury sliced. Moreover, attempts are periodically made to create such a bullet for small arms, primarily for large-caliber systems.
                        Hence the conclusion: any terminology is very arbitrary, has a bunch of national characteristics with accepted assumptions. Moreover, in each notation there is simply a terrible mass of exceptions.
  3. avt
    avt 31 May 2013 09: 17
    Yeah, zagogulin laughing Thank you, I did not come across this design. But the Swedes were too smart.
    1. laurbalaur
      laurbalaur 31 May 2013 12: 19
      Why are they too clever !? For local wars, with their huge number of "handicraft" armored vehicles and all kinds of carts with "tar" in the back, it is!
  4. bazilio
    bazilio 31 May 2013 11: 18
    A very interesting sample, I have never seen such before.
    Bipod seems not very comfortable. If a rubber pad were made on the shoulder rest, it would be more comfortable.

    Thanks to the author
  5. georg737577
    georg737577 31 May 2013 13: 13
    In fact, a small-caliber dynamoreactive gun ...
  6. Hemi cuda
    Hemi cuda 31 May 2013 19: 28
    Thanks for the article is a very interesting rifle.
  7. Truffoff
    Truffoff 31 May 2013 22: 46
    Quote: "The most powerful weapon is between the ears of a person, if it is of course loaded."
  8. Bosk
    Bosk 1 June 2013 01: 23
    All the same, the Croatian rifle with the removal of excess gases through the holes in the barrel ... and the Swedish one, which is closer to recoilless ... I would not call related, by the way, as I understood from this Swedish down, a famous Swedish grenade launcher was drawn over time ...
  9. Landwarrior
    Landwarrior 1 June 2013 09: 15
    HM interesting. Always amused by the swivel "tail" on the edge of the M2 KarlGustav. Now I see that this is their trademark gadget. smile Thank you! good