300 win mag project - new scope & questions

I just bought a NF ATACR 4-16x42F1

I plan to mount it on the pictured rifle which currently has a 3-9 Sworovsky mounted.
The rifle is a 300 win mag which was made with a Sako receiver, a 1:10 Douglas barrel and a McMillan stock.

My question is what kind of rings/mount would you use for the Sako action. The scope is 34 mm in diameter- I will try to attach a photo of the new NF scope as it would not attach with the rifle picture

Thanks