A lot of the steel cased ammo being sold today may have a coating on it
that sometimes builds up and you get stuck cases. I will not use steel cased ammo in any of my rifles or handguns. The only exception is using Royal Tiger steel cases 7.62x39 in my Chinese sks. And even then will do a serious cleaning of the chamber to remove any coating buildup. So far so good. Paid less than $100 for the sks. Frank