This is a fairly rare Featherweight, being chambered in 280 Rem. It seems like Winchester wanted to avoid chambering their rifles for rounds that had "Rem" in the name, so the 280 and 25-05 aren't real common. Your rifle is a 5-digit, which are a little nicer than the rifles that followed.
ETA...
Of course, with "global warming", 3rd rifle season hasn't been as cold as it was in the 2000's - until the 2019 season, when it was negative temperatures some mornings.
For me they're true to size, but if you read the reviews on Kuiu's website, people seem to recommend going up a size for a lot of Kuiu's clothes. If you have any doubt, I recommend getting a couple of sizes and returning the one that doesn't fit you as well.
I had the Timberlines and sold them after my thighs got soaked while walking in blowing snow.
I only have a few days on the Axis pants but have been very happy with them so far. I did a lot of kneeling on the snow without any moisture getting through. They're not super warm, though, so that...
OP,
By "7mm Mag", do you mean 7mm Rem Mag? Or can it be a 7mm WSM, Weatherby, 28 Nosler, etc?
For a mountain-style rifle, my vote would go to the Kimber Montana.
When I saw "LRI' on the barrel, it made me suck in a deep breath...
I'm glad that Chad responded on this thread and owned up. Kudos to him. And hopefully the OP will get his rifle up and running soon.