Ok, figured it I think. and it goes like this......

60 mm objective requires high scope mounts.
High scope mounts means more 'down' adjustment for a zero.

Therefore... limited adjustment left for more distant targets. This would apply regardless of zero range. Its all about the cross hairs in the scope being able to look at the POI at ranges over 50 yds. POI is constant at any given range, as is trajectory (with my particular pellet). This particular scope cannot be adjusted with dial in for a target more than 60 yards out when zeroed at 35 yards when mounted on my gun with the mounts I have

Puzzle solved. Unless anyone tells me Im wrong

Oh and........ they are 1/8th MOA clicks