Should be no problem with regular 9mm ammo (AE, S&B, Remington). I've been shooting (few hundred rounds a year) a DOM 1918 with regular ammo with no issues.
A DOM or a DWM Graham?
I also shoot my 9mm Lugers with a steady diet of quality factory FMJ ammo without any issues.
I have a 1936 Luger, and I shoot various types of factory ammo. NO problems at all.
I have tried certain brands in mine that did not work too well, and others were flawless. I load ammo for mine that works perfect.
All of them are different? But factory ammo will not hurt it. No +p!!!!!



























