Then it is time to study the Parabellum pistol :)
It has a, rather unique, stepped chamber design for the 9x19 para cartridge, which provides for an excellent, although somewhat unneccessary, gas seal. The 9x19 case is slightly tapered and a fired case will clearly show the imprint of the chamber step.
The laquered steel cases that Germany manufactured during the war years were causing jams in the Parabellum pistols and the German army did contact Mauser in order to check for a solution, which was a simple one: remove the step.
It is one of the few documented examples of a pistol that has issues with steel cased ammunition, opposed to its brass cased counterpart.
At our range, the problems with steel cased ammunition are usually more related to the lack of quality of the ammunition components. Steel cased Russian ammo damaged a SIG PE90, an AR15, an M14 and an M1 Garand. The only rifle that ate the Russian stuff without much problems was an Israeli .308 conversion of the K98. The only steel cased ammo we are using at the moment is that for a Zastava, which is designed to take it, in 8x57. The rest gets brass and nothing else.