I know of a raised carved Va, rifle that had brass screws. It sold at the KRA show. I saw it a few years later and the screws had been changed. I ask the owner why the screws were changed, He said, I thought they were wrong, so I had them changed. I found out they were right, and I am now trying to find the brass screws.
I own a rifle with brass screws. They are in the butt plate, toe plate and patch box and a few other places.
They did use them in later years. Yes, they are correct, though rare .... Louie