With a 26 inch custom barrel you can probably get the 105/7's VLDs to about 3200 fps, maybe a little more. This will reliably kill a 100#-150# small boned animal to at least 1K. While the BC of these bullets are high for 6mm's, they are still subject to a lot of wind drift at long range so things can and will go wrong on the windy days.
So a lot would depends upon your hunting style and whether you will be taking short range shots of 50 yards and staying under 1K. I personally would like a little more top end power for a scope than 15X but I suppose I could live with it if I needed to take a lot of short range shots.
The Nightforce is graduated in MOA.