If you go down to the General Discussion part of the forum there is a thread on Joel Russo stocks and I posted up a couple of pictures. My rifle has a V3-LR (6.5-20X 50mm) on it. They are good reliable scopes that will do just about everything a person needs a scope to do if you wish to actually kill something.
Realize up front that the difference between a 1" tube and a 30mm tube is elevation adjustment and the difference in the regular V3 and the LR (long range) is the dial up turrets. Each thing adds costs and you have to decide what its all worth to you. The rifle in the picture was built for one thing and one thing only and that was to kill antelope at 1K. The scope was selected for that purpose.
If I was shooting whitetail deer at 600 yards, I would probably not need all of the magnification nor all of the elevation adjustment. Nor would I have added two pounds of lead to the stock of the rifle.
I have never shot an animal with a Nikon nor a Sightron so I am not familiar with their abilities.