Artillery Guns and Howitzers with direct fire

[Pats]

Artillery Guns and Howitzers with direct fire.
So to put the title into my question, what would be the best way to model a weapon with Mobhack to have an artillery gun or howitzer (lets say 105mm) that can use anti tank rounds in direct fire.

Indirect Fire would be a range over 200 with HE and possible HEAT shells.

Direct Fire would be a lot shorter wouldn't it. So the only way I can see, is to use the sabot slot. But there is no entry for kill value only penetration. What value is the weapon using for sabot kill.

Could something like this be alright then? (attachment)