I was just reading the thread "can a knight bighorn 209 be switched to a western legal" thread,Some on there seem to agree that covering the primer is a good idea.Is this sticking to what your arguments are as far as if you want to scope your rifle hunt modern?I guess it depends on what everyone else is saying in the thread as to how your opinion goes.
If you want a covered primer hunt modern then!
Even in the true western Hunter/Trapper period the Mountain Man covered their rifles in inclement weather to protect them. They didn't have the devices we have available today but they did often slide them into a full rifle scabbard. It would be natural for them to be more protective of their rifle than we are today... #1 thing 'Keep your powder dry pilgrim'
So for hunter to protect an open breech should be no surprise to anyone that hunts with a Western legal ML.
Flintlock Frizzen & Pan covers have been around long before any of us and were used by the Mountain Man who needed his rifle to function in any weather
