Good question-----IMO, it would have to be those timberline mulies. They live in the same rough terrain as the bighorn. But they are much more alert than the bighorn. They test the wind & can pick-up movement just as quick as a ram. They feed in the alpine but slip back into the timber to bed. Rams will bed in the open giving you a chance to stalk. If you look at the success rate on bighorn or mtn goat --at least here in Colorado it's pretty high Goats are pretty close to 100% & sheep is about 75%----I think it's been a couple of years since I looked.

Elk-----a great game animal----but he bugles, giving up his location. The timberline mulie doesn't.

By timberline mulie---I mean a 30" buck.

Not to brag or boost---But I've taken a 7/8 curl bighorn, 8" billly & a 300 class bull----all here in Colorado on public land -------but never a 30" mossyback,