buckstix-
Here are a couple of images and references that may be helpful if you weren't already aware of them.
This photo, of Nils Hultgren at work carving a Winslow stock, is from an article on Winslow rifles from
Gun World of 50 years ago.
.
.
The next photo of a Weatherby was published 31 years ago. The stock appears very similar to yours, with screwbean mesquite wood obviously carved by Hultgren.
.
.
--Bob