Since decades this properties doesn't spawn anymore on Bows.
I own at least one Heavy X-Bow with Moving-Shot and Dismount Option.
How does UBWS works? If an Archer use it, bad. No special moves are possible.
If you have sword or other weapon skill(70|90) and a little tactics(30|60), both special moves are possible.
The mage weapon attribute can be applied by imbuing. In this case you mage skill counts as Archery skill.
Attached the unmodified X-Bow and a version created on TC1(imbued).
Unmodified Bow @ DF
Bow on TC1
I own at least one Heavy X-Bow with Moving-Shot and Dismount Option.
How does UBWS works? If an Archer use it, bad. No special moves are possible.
If you have sword or other weapon skill(70|90) and a little tactics(30|60), both special moves are possible.
The mage weapon attribute can be applied by imbuing. In this case you mage skill counts as Archery skill.
Attached the unmodified X-Bow and a version created on TC1(imbued).
Unmodified Bow @ DF
Bow on TC1