Re: post 21
I just finished a 338 AI build and have the NF ATACR on it with 30 MOA rail, but more importantly is that the ATACR has a 34mm tube, and let me tell you this scope finds that last bit of light out there, my other NF are 30mm tubes and are impressive, but not quit the standard of the ATACR. Lastly, and simply put, resale of a NF is always present, always.
Please correct me if I'm wrong, but tube diameter affects the amount of elevation travel, and objective size affects light gathering ability. A 30mm tube vs a 34mm tube light gathering is the same, but the 34mm will have more travel. A 56mm objective gathers more light than a 50mm objective (the glass quality being equal). I think the ATACR just has better glass and/or a larger objective.