In many action movies, there is a bridge design of underwater fighting. However, in these bridges, the two sides of the fight either use fists or knives. Better equipped whaling guns. But in general, they are all cold weapons. The powerful AK-47 on land becomes a toy gun in the water, which is harmless.
How to use powerful killing weapons underwater has become an urgent problem for the military of all countries. 1975, when countries were still struggling to develop underwater rifles, the Soviet Union had quietly equipped its special forces with underwater rifles, and this gun was the famous APS underwater rifle.
It is famous because from 1975 to now, there is no other underwater rifle weapon except APS underwater rifle in the world. In other words, this is really the only gun. APS underwater rifle is somewhat similar to AK-47 in appearance, especially the bolt part is stamped with steel plate. The production cost is reduced and the production efficiency is improved.
In the firing mode, there is almost no difference between APS underwater rifle and land rifle, and it is still fired with gunpowder. The bullet is waiting to be fired in a completely sealed gun chamber, and the user only needs to pull the bolt and pull the trigger to complete the firing. Due to the good sealing of APS rifle, gunpowder can be fully burned in the barrel.
When the bullet leaves the gun chamber, it will continue to move forward under the action of inertia. Finally, hit the target, because APS rifle is fired with gunpowder, so its bullets are discharged quickly, and hit the target within the effective range, which can basically hurt it. Therefore, the appearance of APS underwater rifle can be said to be revolutionary compared with the previous underwater firearms.
Of course, as the only underwater rifle in the world, APS also has many shortcomings. The first disadvantage is that the range is too close. According to experts, the effective range of APS underwater rifle is only a dozen meters! This is still underwater, and if it is on land, the range will be shorter. The range of more than ten meters is really touching and disappointing to the users.
The reason why the range of APS rifle is so close is that the resistance in water is too great, reaching more than 700 times that of air. When the bullet moves in the water, it will also become slow-motion playback. It is also because the resistance in the water is too great, so it is not easy for APS rifles to hit a range of more than ten meters.
In addition to the short range, APS rifle has another defect, that is, the bullet power is too small. It is precisely because of the great resistance in water that the bullets equipped with APS rifles will change from cylindrical to needle-shaped. Only by compressing the size of the bullets as much as possible can the range of the bullets be guaranteed.
This kind of bullet is as thin as a needle, and it is easy to break or change the flight direction in the human body after hitting the human body. The final result is to stay in the human body, but also because of its slow flight speed and low power, it will not cause instantaneous cavity effect in the human body. In this way, being hit by an APS underwater rifle is almost the same as being stabbed by a needle. For soldiers, there is basically no much harm.
Moreover, this kind of bullet used on land is not even as powerful as the slingshot we played when we were young. The reason why this happens is also because its shape is too slender. Although APS underwater rifle belongs to mountain gun, its performance is not good. Therefore, the Soviet Union did not disclose this weapon until the disintegration of the Soviet Union, and the West did not know about APS underwater rifles. But at this time, the Russian army no longer uses this rifle. The APS rifle thus withdrew from the stage.