While I respect Boddington for his accomplishments I disagree 100000000000000% with his opinion on this. 06 can, has, and will kill sheep. Period. We've killed a hellava lot of sheep, mind you in Texas, with an 06. If it will kill a aoudad it will kill any of the sheep. A crap ton, neh, a metric crap ton of aoudad have fallen to an 06. Dall, stone, and big horn while certainly difficult to hunt do not show the toughness of the aoudad. 06 will do fine. We've killed plenty of sheep on my place with a hellava lot less than an 06.