Hi guys the issue is i am having difficulties mounting my scope due to the object size etc any lower than 2.5ins/64mm above the bore line; the ballistic charts are based on 1.5ins/38mm, if i zero in at 60yds is this extra inch height going to need much adjustment if I shoot at 35yds or at 80yds or 100yds please any body able to help with any data thanks a lot, regards