[derstosstrupp]

The scope graticle you see Maciek showing on TVre.org is the historically-correct one for wartime scopes (both the C/2 attack scope and the NLSR “obs” scope). Its vertical scale is in 10/16°. The horizontal scale is in whole degrees (valid for 1.5x only). The horizontal scale is useful for quickly eyeballing a spread.

For ranging, you take the mast height / tan (# of marks * 10/16). Multiply answer by 4 if using 6x. TVre.org shows the range tables from MDv 416T which took the work out of it.

I can’t speak to the GUI bstanko6 is using but the above is at least for historical context. But dividing by his 0.22 is nearly the equivalent of multiplying by 4. If the GUI uses 1.5 and 6, then multiply by 4 as (6/1.5) = 4. Forget the 0.22 then.

I have the manuals for both wartime scope models so any other questions on them, happy to help.

And remember - at low gyro angles, range becomes largely irrelevant to lead angle. So a rough estimate is enough if gyro is within say +/- 30 degrees. Historically it was common to simply estimate range at the shot by how much the target filled the optics horizontally.