So Ian definitely checked my guide at m9130.info/svt and he got most of facts about SVT-40 straight, however the other things he was saying about pre-SVT Soviet firearms were funny. No, in 1930 Degtyarev rifle was not accepted (it was never accepted) and SKS was not "accepted in 1945 and got to manufacturing only in 1949". SKS-45 manufacturing started in 1948 and it was officially accepted along with AK-47 in 1949, SKS as semi carbine and AK as full-auto assault rifle.