All three at once?glockoneniner wrote:I nailed three one-gallon milk jugs from 275 paces with a scoped Savage .223 a week ago.

Sorry, couldn't resist.
I can't be a great deal of help here, I'm pretty much a .30 caliber person having two .30-06s, and my only scope is relatively low power mounted on my AR.
Looks to me as if you might have just enough experience to start to make up your own mind, but having said that, from my experience on a rifle team and as a junior coach, I would recommend starting with low power and working up. These days the variable power scopes are a good choice, they are much better quality than the ones we had "way back when" but kind of expensive too.