There is a huge variety of different types of ammunition for the Kalashnikov assault rifle. First of all, they differ in the filling of the striking part. All "special" ammunition is marked with paint. Mysterious cartridges for AK stand apart, which have some kind of longitudinal dents on the sleeve. It is quite obvious that the ammunition came off the assembly line. The key question is why are they so needed?
You will not hear any conclusions from "experts" about this type of patrons on the Internet. There is everything here: from very strange versions to frankly comic ones. So, one master quipped that 5.45x39 mm ammunition with longitudinal dents on the sleeve is a special type of armor-piercing ammunition that can pierce the rail along! Jokes, jokes, but in fact there is no intrigue with the "mysterious" cartridges, moreover, those who served in the army most likely held them in their hands.
The fact is that this is not ammunition, but a mass-dimensional model of real cartridges. Special longitudinal grooves on the sleeve are just needed so that a soldier can immediately recognize that in front of him is not real, but training cartridges. Shooting like this will definitely not work. Then why are they needed? The fact is that learning to handle weapons involves more than just shooting.
READ ALSO:Why the Kalashnikov assault rifle store only holds 30 rounds
So, for example, fighters must be able to quickly and correctly equip a magazine. Incorrectly loaded cartridges in the magazine can cause "chewing" (when the cartridge does not fire, but completely flies out together with empty cases) or even jamming of the weapon. For this, training cartridges are used. They have the same dimensions as the real ones and weigh almost the same. Moreover, they exist for a variety of calibers, including 7.62x39 mm and even for 12.7x108 mm.
>>>>Ideas for life | NOVATE.RU<<<
Continuing the topic, read about why the shop of the Kalashnikov assault rifle holds only 30 rounds.
Source: https://novate.ru/blogs/130220/53424/