Does Anyone Know The Calibration for the Type 9 Scope

[Atomicfireball]

On the Krab scope, the calibration was X.5 for BB X 1 for CA and X2 for DD, then adjust as necessary with direction and angle. (The X is shell flight time) This only gave you a starting aim point as many other factors came into play. I can't seem to nail down the Type 9 Krab-like scope. All I have so far is 5 for BB's at full speed and Cruisers 12.5 and these are averages not always on.