Question for the Mildot experts

This ones a bit complicated (for me) 
Situation: I have a Chinese scope on my cricket. It holds zero superbly well and I like it. I also have a MTC Viper connect but I don't have the rings to mount it on the cricket yet. So coming back to the Chinese scope. This one claims to be a 3-9X scope. But at 9X it's about half as big as a proper 9x scope. So I know it's not truly a 9x scope. I shoot it at 9X power.

The problem: I have been trying to figure out what is the true min and maximum magnification on the scope so I can enter the values on sterlok. My target size is 3.6 inches which means it should cover 1 mildot at 100 yards or 2 mil dots at 50. However in reality at 9X the target actually covers only half a mil dot at 9X magnification (50 yards)

Other data available: 
1. Scope at 9X is zeroed at 60 yards 
2. At 100 yards it shoots exactly 1 mil dot holdover. 
3. At 30 yards it shoots more or less 2 mil dots hold under. 

The question: Is there any mathematical way of figuring out what is the TRUE min and maximum power on my scope assuming I only shoot it at 9 X and at a 3.6 inch target. I wanna enter these data points on sterlok so I can use this scope properly. Tried a couple of random combinations of min and max but wasn't able to figure it out. 

Any help would be appreciated here. I know this one could be an easy fix for the experts here and to be honest I am banking on that. Thanks in advance. 
 
Thats the main reason I use first focal plane scopes with mil reticle's and mil turrets. No calculating. Its the same at any magnification. I don't know why they still keep making second focal plane scopes with mil reticles and worse yet with moa turrets. Second focal plane scopes are fine with a regular cross hair reticle where you dial your elevation and windage but not for hold over reticles unless its a fixed power scope.
 
30calThats the main reason I use first focal plane scopes with mil reticle's and mil turrets. No calculating. Its the same at any magnification. I don't know why they still keep making second focal plane scopes with mil reticles and worse yet with moa turrets. Second focal plane scopes are fine with a regular cross hair reticle where you dial your elevation and windage but not for hold over reticles unless its a fixed power scope.


The reason why manufacturers still make primarily second focal plane scopes is because the manufacturing cost is much higher for first focal plane scopes. When I say higher I mean the process of making them is much more difficult and many times the cost of a second focal plane. This even applies to Hawkes high level scopes like the sidewinder+ or airmax. I spoke to a representative and voiced NY opinion that every scope company should have a super high quality line of focal plane 30mm scopes with mrad reticles but =( you know, nobody wants to listen to a nobody =).
 
If your "MD" scope is subtending a 3.6" target .5 mil at 50 yds. then the subtension between dot centers is 14.4 inch per hundred yds. @ 9X instead of the mil std. of 3.6 IPHY. Although the scope could be off this much I would doubt it. Are you sure the "variables" in the equation are correct?, i.e. tgt. size, range to tgt., mil-reading?

OK--I think I see what may be going on--you must be milling at 3X maybe instead of 9? 14.4 IPHY would be calcd. at 2.25X actually, but 3X would be difficult to discern a mil reading relative to 2.25X.