You are looking at it backwards. Don't start with the barrel
Start with what you goal is... you say backcountry.
so let's say mule deer or elk out to 500 yards
Which means a 7mm or 308 bullet for most guys.
You don't reload, so what factory offerings are out there? Do you want to use...
Specifically the black harvester sabot... had a very strong reputation of improving accuracy.
Be sure you have the blackhorn breech plug as well if you use blackhorn 209
Deer hunting?
80grains by weigt blackhorn 209 [some people measure by volume so be sure they clarify volume vs weight measurement]
Hornady 250 sst with black harvester sabot
I had fed and cci 209 primers with no difference.
The black harvester sabot is key.... not all sabot are equal.
Shoots...
My favorite reticle but i have the 52mm objective. I treat them mainly as 2.5-17 power as over 17x the eyebox and view gets tighter. 17x is plenty for me though.
My buddy has a 28 nosler gunwerks with 180 berger vld hunting bullet. He has missed once in over 40 kills. Kills including grizzly at 550 and moose at 450. Both pass through with massive wound channels. Good luck finding something better than that. Especially when you start stretching past...
Solid core door with oak exterior from menards is what i use but i see you have way too many feet.
I would go with the bitch plywood for cabinets with the many layers in it....i forget what is called