Asking what gun you have is necessary to help answer your question.
I have used brass and steel case in dozens of handguns and rifles. I have ran thousands of rounds of Wolf, Tula, Brown Bear, Silver Bear, Golden Bear, ect through these firearms and from that experience, I know that it is fact that you can take Tula and run it all day long through one gun with zero issues, then try it with a different gun and have all kinds of issues. The issue is the firearm, it makes a difference.
It can go the other way too, I have a CZ that can't get through a magazine of brass case without 4-5 ftf or fte but runs great on steel case. The gun matters, it just depends on the gun and the gun makes all the difference.
Not being a snob, just answering your question cool your jets.