If I was down to one rifle it would be my Sako 75 Finnlight in 300 Win Mag.
This one is scoped with Swarovski 3.5-18x44 with BT 4W Reticle.
180 Gr Barnes TTSX for everything at about 3000ft/sec, (2960 IIRC)
I have good Rangefinding Binos to make full use of the optics and ballistics.
I would keep my 30-06 Finnlight as a buck up gun with Barnes TTSX 150 gr.
And as the government sent me a letter this year about applying for Old Age Security I should have something with less recoil.
I am not recoil sensitive but why not I have it already.