Yes, I understand that. The issue is that the TC is calling out coax engagements well beyond the 1600m range, even as far as 3000m. In this instance at 2290m.
Had to use the JIM-LR today and noticed the controls for its focus. Wondering if this was applicable to the M1s I tried it and it works.
I don't know if this is known so here it is; Numpad / to focus closer or Numpad * (Numult) to focus farther away.
Seems to work for all the vehicles @Volcano listed above.