Though they are very expensive, march scopes come optically and mechanically centred, so that method will work, except i would do it at between 45 - 47 yards if you dial your turrets for range as this distance will give you very similar amount of clicks in either direction for close or far targets, which will keep you at an optimal position from centre.
Though not all scopes are created equal, i have not found my Nikkos to be that far out either,
But brian is right you should check first.
Crashing and burning
Last edited by fireblade; 30th May 2016 at 10:02 PM.