It’s reported that he executed 7,000 people.

Assuming you had a perfect shot each and every time, with no duds or misfires, that is still 7,000 rounds of ammunition. Remember, this is 6mm ammo, getting a kill in the first shot would be lucky unless it’s point blank to something extremely vital and at the perfect angle.

Walking around with luggage of an uncommon German pocket pistol with several thousand round of ammunition is a comical thought.