I shoot full power loads out of my .44 Magnum old Vaquero on a regular basis. I have never seen mention of a New Vaquero in .44 Magnum. I suppose that is because they must think the New Vaqueros can not handle the heavy loads.
'Four legs good, two legs baaaad." ---------------------------------------------- "Jimmy, some of it's magic, Some of it's tragic, But I had a good life all the way." (Jimmy Buffett)