I believe you are confusing the steel case with a steel core.
the commies will just define armour as “human skin” and ban all ammo.
next, armour piercing swords.
Please, go on any ammunition website that sells Wolf WPA Classic and Silver Bear and read the description of the bullet. I am fully aware that almost all ammo in 5.45x39 is steel cased. I’ve only owned the gun for several years and shot several thousands of rounds out of it.