Steel cases have another problem besides expansion. They are hard and cause chamber damage. If any edge exists at the bullet crimp, it acts like a chisel on the edge of the chamber when it feeds in. This is especially bad in pistols due to the angle of incidence on the chamber wall and generally higher number of rounds fired.
Thanks all for the good info. I have run fair amount of Ruski steel through 45 ACP, not many apparent problems, but like anything else if its too good to be true (low cost plinking) it probably is. Sure don’t want to turn a fat pistola into a trotline weight.
Thinking about it, I would never buy chinese ammo, why ruski??? Both’s price edge is from dropping quality.