Not sure if this helps anyone for taming or anything, But I found that even with just 28 charisma with a random alt I have been playing with, stern order gives a full five advantage on mouflons.
It was weird, but helpful even 11 UA is enough to block the first hit at full advantage, so... yeah, great for taming, rather than side step or skuld.
Enjoy, also, with some skill, you can tame aurochs and mouflon with 11 UA. Boar too, if you find them with a very wide shore, like those at a lake. But bring armor....
Pretty sure that's common knowledge but I didn't see where anyone posted that mouflons are vulnerable to charisma moves.