None taken, at ALL, especially since I have such little experience with them. I am not totally recommending it, just saying I wouldn't have an issue with using it, and I have that much confidence in the round. Aoudad just are not big critters. The ewes looked not much bigger than antelope to me. Whatever works for deer, should work for them.
You already answered your own question to my post. Wind and distance in West TX aoudad country is the reason I choose otherwise. No doubt you can kill them with a good .223 bullet in close. Big rams will weigh near 300 lbs or so, mature ewes about 150-175 IME.
