Breathing hole in fx royale action

[mubhaur]

Is there any problem if the breathing hole in fx royale action is drilled 3mm instead of 2mm while installing regulator?

 

[weatherby]

"mubhaur"Is there any problem if the breathing hole in fx royale action is drilled 3mm instead of 2mm while installing regulator?

As long as it is not leaking through the vent hole, no, not really.