Wby 300
Anywhere from $1200-1600 if it is a Mark V Deluxe.
If it is a Euromark or oiled Deluxe stock or Lazermark you can add another $100-200
If it is a sporter $900-1400.
If it was a German Sauer made Weatherby you could probably ask for $1800-2000.
I love these rifles and I have a buddy looking for a nice Mark V Deluxe in 300 Wby. Let me know if it is for sale.