I am assuming that the AT1 bull's eye label is not meant to be precisely accurate in its positioning but only generally informative - could you verify this?
You´re right bravekind,
AT 1 is positioned on claim # 3012258 , which is FNC´s claim.
Regarding positioning on maps there has to be some inaccuracy, just have a look at the NOT/FWR JV, the bullseye target seemed to be positioned in different ways depending which map you were looking at. Because it´s a JV target now, it wouldn´t matter.
Different with the NOT/FNC target, I think GPS only could clarify that, don´t rely on maps.
FANTOMAS