Ok Interesting. I also use strelok, although I use it less now I have the Leica range finder. So I guess it would be fair to say that in order to use the hash marks on a FFP scope that strelok (or something similar) is essential tool in order to convert a wind reading into Mils.
For wind reading I try to keep it simple. I have the 10 knots @ 90 degrees wind values taped to my stock for various ranges in 50m Increments, I can then make quick mental adjustment to the wind hold based on these values. For example 10 knots at 45 degrees is 50% of a given value, 15 knots is 1.5 times the given value. This is quite effective and very fast to apply, maybe not as precise as your system but reading the wind is an imperfect science.
Also, I am curious as to what scope are you using? I found it difficult with a quick search to find anything online which fitted into what I would consider a FFP hunting scope. My criteria would be as follows.
Under 700 gram in weight
magnification range of 4/5 to 20/24. So something with a 5x zoom range
30mm main tube
50mm objective lens ( could maybe live with a 44mm)
decent quality glass ( Japanese or Euro)
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