SIMONOV 7.62mm SELF-LOADING RIFLE (SKS). A 7.62mm semi-automatic carbine with an effective range of 400 meters, the SKS has a 10 round integral magazine and an ROF of 30-35 rounds per minute. The SKS resembles a conventional bolt action rifle but is equipped with an integral folding bayonet under the muzzle. Used extensively by the VC, it weighed 3.86kg, had a length of 1020mm and a muzzle velocity of 735m per second.