The Nikon Pro Staff is a great scope. I have them on several rifles. Personally, I use the 2—7x32mm model without the bdc. I just find it meets my needs. The pro staff is a great scope. It has excellent eye relief and some of the best glass I have used. As for the bases you need, I can't comment. Keep us posted about how well the rifle shoots. I have thought about getting one. Although they are not legal in our muzzle loader season. I personally think it would be great to own.