Won't Fire AP Ammo

[sigeena]

As an aside question,

How does the game decide to use AP or Sabot? Does it always go for the higher penetration? Or does it also weigh against the target? For example, if my target only has 1 for armour, would it still use Sabot at range of 1?

I'm asking because I wanted to conserve my sabot rounds against the heavier targets, but the heavier ones tend to be slower as well, so it'll take awhile before my units meet them, in the meantime, their AP are usually sufficient to take out the lighter faster targets.