This answers my question:
If you wish to know sight marking sizes or spacing bring up the target at 3333 yards. Then Each circle will be 1 mil.
HiTech
The distance between the ^ marks in the T34/85 are indeed 8 mils. So if a Panzer (19.5 ft long) is side on and just fits between two ^ marks of the T34/85 sight, it's at a range of 812 yds. If it fits between a ^ and the adjacent : then it's 1625 yds, etc.
The tick marks on the T34/76 are 2 mils.