SKS rifle used cartridges of the 1943 model with ordinary (with a steel core), tracer, armor-piercing incendiary and incendiary bullets. Shooting is carried out by single shots. The supply of ammunition during firing is made from the store. Magazine capacity – 10 rounds.
The most valid fire from the SKS carbine is at a distance of up to 400 meters. Sighting range of 1000 meters. The range of a direct shot at the chest figure is 365 meters. Concentrated fire from carbines is conducted at a range of up to 800 meters, and for aircraft and paratroopers – up to 500 meters. Combat rate of 35-40 rounds per minute. Weight of a carbine with a magazine loaded with 10 rounds, 3.9 kg.
Device and set of 7.62 mm Simonov SKS self-loading carbine.
The carbine consists of the following main parts and mechanisms:
Barrel with a receiver, sight and bayonet.
Gas tube with receiver.
Pusher with spring.
The carabiner kit includes accessories, a belt, clips and cartridge bags. SKS carbine is a self-loading weapon, since it is reloaded automatically, and the trigger mechanism allows firing only with single shots. The energy of powder gases discharged from the bore to the gas piston is used for reloading..
The operation of the SKS carbine mechanism when firing.
When fired, part of the powder gases following the bullet rushes through the hole in the barrel wall into the gas chamber and drives the gas piston, pusher, and with them the bolt. When moving back, the shutter opens the bore, compresses the return spring and cockes the cock. In this case, the sleeve is removed from the chamber and thrown out.
Without lingering in the rear position, the bolt, under the action of the return mechanism, returns forward, sends the next cartridge from the magazine to the chamber and closes the bore. The shutter is locked by the fact that the combat face of the shutter body abuts against the combat stop, and the locking protrusion of the shutter stem keeps the shutter skeleton in this position.
To fire the next shot, release the trigger and press it again. When fired with the last cartridge, the shutter will stop the shutter and will not go forward. This is a signal for the shooter to charge the rifle again..