Some time ago I saw at the shooting range, like a person who is at the end of the training for a shooting patent, during training with Glock-AM17, She turned to my friend, instructor with a claim: "How should I shoot accurately, If this gun jumps 30cm up during a shot. No wonder, that I shoot at the shield. I would like something with a smaller jet, Because it makes no sense ... "
Let's talk about it, what happens with a firearm during a shot.
Knowledge on this subject should be a obvious to anyone interested - that's why I invite you to read the following article, who do not yet have this knowledge. I will try to discuss the topic as easiest and as possible as possible.
Mimo, that most people are aware of the presence of gunpowder in ammunition - few really have an idea of strength, with which the explosion in the scoop acts on the structure of the weapon. It is hard to imagine at first glance, that such a small item, How the scale can contain the amount of gunpowder that is able to cause a large explosion.
And actually. If you put gunpowder on the table from such one scale and try to set fire, A PO Drugie, if it was already succeeded, It would turn out, that our "explosion" is limited to hissing and minimal smoke. It would be similar with black dust, just set fire to it, it would be slightly simpler, and smoke would be a bit more. Not, or siak - without any revelations.
However, the case looks completely different, If we lock the dust in hard, tight object. The pressure at the explosion increases rapidly to really huge levels and hence the bang and strength, which is able to push the ball out of the scales, push it through a relatively narrow barrel and send hundreds of meters forward. Contrary to this, what most people think, If we want to throw the bullet into the barbing barb, it will not fly through her freely. Thanks to this, that the barrel is tight- powder gases do not have such freedom in expanding and escaping with sides, celebrating the ball and going in vain (It looks slightly different in "Shotgunach", Smoothly barrel weapons, But this is a topic for another article).
Let's return to the statement I hear from the beginning of the article. There is no doubt, that jet and toss (obvious difference) They have practically no influence on this one shot we fired.
Of course, the next ones may be less accurate, If we want to give them back one after the other, But this is the case of the next and the next and the fault of the fact, that it is simply difficult for us to quickly return the bow tie again towards the center of the shield.
So what affects this, that the bullet does not really fly out of the barrel in this direction, in what to do?
Change compared to the line, which we really want to send a ball is actually relatively small, but it exists and is the result of many factors. Let's start with the fact, that the movement of the mechanism in the weapon (descent, needle) causes weapon. After all, the spank is compact and it is not with little force at all. There are already weapons vibrations here, hand. Then the explosion occurs. For these, who considered physics - in typical pistol ammunition, pressure in the initial phase, at the moment, when it is the highest (At the time of disconnecting the scales with a ball), is around 100-300 MPa. In the case of e.g.. Magnum ammunition - much more. This value is in one word really large and generates a lot of shock. But basically - the shock disturbing us, Or rather its disturbing phase - it occurs after the ball out of the barrel. Nevertheless, the explosion is, This and movement is. But most importantly - barrels, mimo, that more and more advanced- They are not cosmic and no chance, that the missile flying through her would not put her in any vibrations. There are simply no miracles. Therefore, shots falling from one pistol fly out of it every time at a little different angle. But certainly, at least in good and efficient weapons, I have no mention of this, that one bullet would fly 2 left meters, A Drugi 3 to the right and meter up. There is no doubt, that the statement from the beginning of the article was nonsense. The pistol makes a move, considerable, But when our hand is thrown up significantly - the bullet is long ago from the barrel. We are not interested in such a recoil in the context of one shot. I guess, that we will come up with an extreme example of the type - weighing weighing so much, what a missile. The effect of the shot would be obvious. As a rule - the heavier the weapon, the more masses it has, which will absorb the recoil. It depends on a few factors - such, like the length of the barrel, for example, But the general rule has it, as above.
Many people are also wondering, or unfortunately he often states with "certainty", that the bullet reaches its greatest energy exactly at the outlet of the barrel and, that strength, with which it is thrown so large, that the bullet flies straight for a long time and does not fall. Nothing more wrong. Earth attracts everything the same, indifferent, Is it a standing car, or a ball flying at a few hundred meters speed.
Bullet immediately after that, how he loses support in the form of a barrel, it starts to fall. As for energy- With its highest value, we deal a bit behind the barrel, moment before that, how gunpowder gases begin to expand rapidly(Contrary to appearances, they do not lose their power immediately after leaving the barrel, only slightly later) and they run into the atmosphere. Despite this indisputable fact, the speed of bullets is often measured at some distance from the outlet of the barrel. Often even a subway, two, three. Instructors also meet with a question about the bang of a shot and why one weapon in a similar caliber is louder than others. There is no doubt, that this amount of gunpowder is more important, not a caliber, But of course, One goes hand in hand with the other. More or less. Because ammunition in one caliber is often produced with various amounts of gunpowder. Combat ammunition, military, Police often has a much larger amount of this material, sometimes too big, To safely shoot the same caliber weapon, what a military counterpart. However, which still affects the bang? It is largely the speed of the missile. A significant part of the bang in supersonic ammunition is the fault of the speed of sound. That is why many troops for suppressed weapons use not only silencers (which allow gas in their numerous chambers to expand. Only appropriate services can use them in Poland), ale i specjalnie przygotowaną mocną, but "slow" ammunition, not exceeding the aforementioned value. Part of the ammunition, from which we shoot from pistols and revolvers at the shooting range, and part to the second. As for rifles - only individual types of ammunition do not exceed the speed of the sound.
