Steel case 9mm; a no-no ?

[Norme]

Hi Adler, Steel cased ammo does not expand on firing and so does not seal the chamber as effectively as brass does. This results in combustion products leaking into the firing pin chamber, causing binding over time. This is why the fluted firing pin was introduced. If you do shoot steel ammo, you will need to clean your gun more frequently. Regards, Norm