I've been looking (correction: Drooling) at this rifle as well.
Here is another recent thread on these rifles: https://rugerforum.net/ruger-bolt-ac...ye-hunter.html
I agree with you on the Walnut/Stainless look. From what I can tell, they are even using the "Satin" stainless they used to use, instead of the "Matte"/bead blasted stainless they've been using on other M77 variants as of late. The satin gives it an even better look.
Besides the threaded barrel and stainless, the other major difference is the 20 MOA rail that is included (instead of the standard ruger rings). This to me is perplexing, partly because the rest of the platform is so similar to the standard Hawkeye models, but also because they refer to the model as "Hunter". I believe you can take the rail off, and purchase the regular ruger rings, but that simply becomes an added expense, and I think they drilled the receiver to add the rail which might leave unsightly holes. The threaded muzzle is lost on me unless I eventually pick up a suppressor to prevent hearing loss while hunting.