T key accuracy report varies

[Case23]

When I use the T hotkey to target a unit, a custom test weapon reports accuracy percentages of 15% - 18%.

In pursuit of better understanding how the accuracy stat affected likelihood to hit, I created 5 custom versions of the M91/30 rifle in the Russian OOB with accuracy stats of 0, 5, 10, 15, and 20 and then units and formations armed with it and it alone.

I set up a human on human battle between Soviet and German forces, bought the appropriate five Russian units, left the Germans with only their Kommandeur, and maneuvered the units to within 50m of each other.

I used ScenHack to set all experience values to 60 for the Russian units.

When I use the T hotkey to get the accuracy % for the 0-accuracy unit, it is variously reported as 15% to 18%.

The other units (with weapons of accuracy 5, 10, 15, and 20) consistently report an unchanging value for accuracy %.

A special case for zero accuracy weapons? Something else?

Saved game files enclosed in case they're useful. Relevant unit is B0. Press T repeatedly to duplicate behavior.

Thanks in advance.

- Case