c&p said:The designation 9,4 mm is the nominal and official diameter designation of the Dutch revolver cartridges.
Attention!
The bullet diameter is 10 mm!
The field diameter of the barrel is 9,4 mm.
The groove diameter: 9,6 mm.
These barrel dimensions cover all Dutch military revolvers.
c&p said:The 9.4 round was also used in the Belgian made Dutch police revolvers.
Regarding the Dutch police revolvers. I have two examples: One has a safety on the left side which engages and locks the cylinder, I was told that this is a prison guard revolver. The other has a hidden safety which is engaged by turning the lanyard loop, which is connnected to a bar which locks the hammer.