I have a nightforce 5.5x 22 x 56 NXS with a NP-1 reticle I aquired recently and mounted it on a 300 wsm I have. With the elevation turned all the way down, the scope is still 12" high at 100 yds. I'm guessing the rifle is sighted in dead on at about 400 with all the elevation adjustment left. Is this common for nightforce scopes? This is my first nightforce and I did not get any manuals with it, so I don't know if I can adjust it. Can some one please give em some advise. Many thanks.