As for scope mounts, I don't know because you didn't specify if your Weatherby is a Mark V or a Vanguard.
As for scopes, Weatherby never "made" scopes. Rather, they had another scope company put their Weatherby name on them. I heard that Leupold used to do this for Weatherby, but I'm not sure. Your best bet, in this circumstance, is to contact Weatherby directly.
Zachary