I know this has probably been asked a million times, so forgive me. I finally got my N6 all put together and I'm off to the range tomorrow to zero my Vortex PST 4-16x50 scope. If I'm going to be zeroing in at 100yds, does it matter which magnification I have the scope set at. I've always heard use the highest magnification, but 16 power seems a little extreme at 100yds. Thanks in advance.