When I had my Montana rebarreled by Pacnor I had them chamber in 7mm-08 with a 1 in 9". It shoots 120's very well. I finally decided to try some 162's in it for reduced wind drift, and I'm glad I have the faster twist.
If'n I was gonna build a 7-6.8 Ingwe, I'd also suggest a one in 9", but hey it's your rifle
