On July 24, China's 21-year-old female shooter Yang Qian in the Tokyo Olympic Games 10 meters air rifle competition to suppress the crowd, won the first gold medal of the Olympic Games, became the focus of attention of hundreds of millions of people, for the air rifle competition, everyone should be more familiar, China's famous air rifle athlete Du Li, she won the 10 meters air rifle championship at the 2002 Athens Olympic Games, 2008 Beijing Olympic Games won the 50 meters 3X20 gold medal.
How hard is air rifle shooting? Shooting coins within 10 meters?
I believe everyone knows that air rifle shooting is difficult, because that target is very small, it is said to shoot a coin-sized area within 10 meters? In fact, it is true to understand it this way, but if you hit this coin, I am sorry that there are only 5 rings.
Because the diameter of the standard target of the ten-meter air rifle is 45.5±0.1mm, and the diameter of a coin is about 25 mm, just enough to cover the area of 5 rings, so when you squint at the coins 10 meters away, it is only five rings.
The standard dimensions for each ring are 45.5 mm (±0.1 mm) for each ring, 30.5 mm (± 0.1 mm) for 4 rings, 5.5 mm (± 0.1 mm) for 9 rings, and 0.5 mm (±0.1 mm) for 10 ring diameters.
The diameter of the air rifle bullet is 4.5mm, that is to say, the 9 rings are just loaded with a 4.5mm bullet, but fortunately, as long as the bullet is rubbed with 10 rings, it can be regarded as 10 rings, the high-precision pressure sensor under the target paper, and the bullet of the air rifle is very similar to the popular airsoft bullet of the year, but the appearance is more refined, and the dimensional accuracy is higher.
<h1 class="pgc-h-arrow-right" data-track="9" how hard is it to hit the tenth ring >? </h1>
If you think it's not difficult to hit the tenth ring, you're careless, because when you were ready to aim at the design, you would find a lot of problems!
The first is that the barrel of the gun is constantly shaking, which is normal, because the person is not a rigid body, but an organic whole "combined" such as musculoskeletal bones, which needs to breathe oxygen, and the heartbeat supplies oxygen-filled blood to the muscles of the whole body.
Breathing can be paused, so it's called holding your breath, but the heartbeat doesn't work, and every beat of the heart affects the state of the hand holding the barrel, so you can imagine shooting like a constantly moving car shooting at the target.
The second is aiming, you think the scope of the air rifle can see the target? In fact, it is a 1:1 auxiliary mirror, there is no crosshair in your imagination, and the real aiming is still a mechanical sight.
Air pistols use a door sight, while air rifles are bore sights, which is figure H in the picture below, with a ring on the outside and a vertical dot in the middle.
So when you look out at the target from the air rifle sight, you will find that the sight directly blocks the tenth ring or even the ninth and eighth rings, and the target is not clear at all.
This is right, because it is not really aiming at all, it is still a rough shot, that is to say, this rough shot also has to cooperate with the breathing heartbeat, of course, many friends when playing because of nervousness, adrenaline soaring, heart beating, how can not be "suppressed", so at this time shooting, but also shot ten rings (according to the distance from the bullseye, There are also 10.1-10.9 rings), you can imagine how difficult it is, at the Rio Olympics, the final of the ten-meter air pistol, Chinese athlete Zhang Mengxue hit 10.9 rings, which is the legendary real full ring.
Therefore, not everyone can be an Olympic champion, shooting skills and psychological qualities must be available at the same time, even if you usually have 10.9 rings each time, there is no guarantee that you can play this result in the Olympic Games.
<h1 class="pgc-h-arrow-right" data-track="10" > compared to professional snipers, who is stronger? </h1>
Olympic shooting champion, many friends will think of another profession, that is, snipers in the army, both are guns, the purpose is to hit the target, simple, rough profession, then shooting champion compared with sniper, which is more powerful?
Air rifles use compression springs and piston structures in the early days, just like the previous air guns, which were later changed to carbon dioxide cylinders, which have limited lethality, but are used to hunt birds very well, its recoil is very small, and in order to ensure shooting accuracy, the initial speed of the bullet is also controlled below the speed of sound, generally up to 270 m / s, while the flathead bullet with poorer aerodynamic performance is about 180 m / s (supersonic shock wave will change the aerodynamic conditions, and the keyhole shape will appear when several targets, Not very good at judging the number of rings).
Therefore, pneumatic firearms are mainly based on accuracy, recoil is also very small, and the shooting distance is only tens of meters, so in the ballistic trajectory is mainly quasi-straight.
What are the sniper rifle shooting conditions?
First of all, not all guns can be used as sniper rifles, this must have a concept, as a sniper rifle has several requirements, one is a long range, excellent ballistic performance, good consistency, accuracy higher than ordinary rifles, excellent mechanical performance, not to a shot after the vibration affects the second shot shooting accuracy, etc., generally there are two kinds of military and police.
Early sniper rifles were selected from ordinary firearms, and modern times have special sniper rifles, and there are also special ammunition, using central bottom-fire ammunition, because the flange-type bottom-fire ammunition flange cannot withstand the high pressure of ammunition combustion.
What are the requirements for snipers?
Shooting on the Olympic field is a distance requirement, such as 10 meters, 50 meters, etc., but snipers can not negotiate when shooting, because they may appear at any distance, some even far beyond the range of firearms, so sniper rifles must have scopes, generally 3-12 times, and there will be auxiliary reference to the scale of aiming.
Scope division of the svd sniper rifle
Many times the sniper will also be equipped with an observer, the observer will measure the current temperature and atmospheric pressure and wind speed and the surrounding environment, after these parameters are informed to the sniper, the ruler will be adjusted, select the amount of shooting advance:
1, distance: must improve the ballistic trajectory, because the ballistic trajectory is a parabola when shooting at a long distance, and when the bullet just flies to the target, the falling bullet just hits the target, which is that the muzzle is not against the target when shooting, but above the target may be more than 1 meter or even higher.
2, crosswind: such as the left or right side of the wind, the bullet may be blown away by the crosswind during the flight after firing, then it must be compensated in the direction of the crosswind.
3, atmospheric pressure and temperature: temperature and atmospheric pressure indicate the current atmospheric density, high temperature means thin, air resistance is relatively small, cold means high density, need to consider more air resistance
4, more than the range of firearms: firearms have a range, such as pistols are generally 50 meters, assault rifle range is generally about 500-600 meters, sniper rifles are rarely more than 800 meters, anti-equipment rifles (may also be used as sniper rifles) will exceed 1000 meters, or even farther.
But it does not mean that there is no lethality outside the range, but the trajectory of the bullet after exceeding the range is difficult to predict, aggravated by the influence of wind speed and atmosphere, and hitting the target not only requires experience and technology, but also requires a part of the luck component, because there is not much certainty in ultra-long-range sniper. The farthest sniper records in modern warfare are as follows:
1. In 2002, Corporal Rob Furlong of the Canadian Army, in the Shah-i-Kot Valley of Afghanistan, hit a Taliban militant RPK machine gunner with a TAC-50 at a distance of 2430 meters.
2. In November 2009, British snipers hit the target at a distance of 2475 meters in the Shah-i-Kot Valley of Afghanistan with the L115A3 sniper rifle, firing a total of three shots, the first missed, the second hit the backpack, and the third hit the torso.
In June 2017, Craig Harrison of Canada's 2nd Joint Task Force 2 killed a terrorist at a distance of 3,540 meters with a TAC-50 sniper rifle.
Of course, not only the above parameters, such as dive and upward shooting, but also rain, sand and complex air flow environments such as valleys and street battles, can not be copied, each sniper has its own unique experience, of course, more important is the psychological quality, because on the battlefield and training is a completely different environment, there will be a bloody actual combat environment, there are nearby bomb explosions and comrades injured interference factors, and even more often is the extreme living environment of the enemy behind the enemy, alone, backwater war, The person who can be a sniper and repeatedly complete tasks is not an ordinary person, but a devil!
Shooting projects are not only air rifles, but also air pistols, as well as shotguns for flying saucer shooting, etc., but the caliber will not exceed 0.22 inches (imperial), and the ammunition of the sports rifle is the use of propellant, but also the charge reduction, its ballistics and military bullets are completely different things, simply put, a pursuit of precision, such as the Olympic indoor competition without crosswind, the ballistic is relatively simple.
The sniper environment is extremely complex, and may even be the harshest environment under modern warfare, so the top players on both sides can be said to be completely different from the same starting line, which cannot be compared at all, so there is no question of who has a higher level, and both sides are the top in the industry.