Inside Soviet and modern Russian tanks, you can see cardboard - it is very often used to make cartridges for shells. Each shot is assembled from two parts - the charge separately, the projectile separately.
At the same time, in Western tanks, the ammunition is solid, the warhead is already connected to the metal cartridge. There is an opinion that ammunition is safer for the crew, as it is located in a separate compartment. However, experience has shown that a tank can be disabled even without detonating the ammunition.
Cardboard cartridges began to be used in the Soviet army, starting with the T-64 tank. This saves space inside the armored vehicle. After the shot, the "cardboard" and the powder charge burn, forming gases that push the projectile out of the barrel.
The advantage of lightweight, so-called cardboard cartridges, although it is not cardboard, but special cardboard, is that they are lighter and cheaper.
Also, no metal bottoms from the cartridges remain inside the tank. For example, the T-90 has a special mechanism built into the automatic loader. After firing, it throws the pallet out of the vehicle.
Tank "carousel" and its device
Inside the combat vehicle, an automatic loader operates - cartridges and shells are fed into the barrel of the armored vehicle without human assistance. The military calls it a "carousel", although before a combat sortie, ammunition is placed in it manually.
In total, there are 20 charges and shells in the "carousel". It can also be placed in a special compartment inside the armor.
Earlier, www1.ru reported that Russian strike unmanned boats will be armed with Skvorets-VMF kamikaze drones.