I think they were made in numerous calibers but those Tradewinds imported for sale in the US were primarily for calibers popular here. I know a a nice one in 6.5x55 for sale on Kodiak

Phil Shoemaker
Alaska Master Guide,
Alaska Hunter Ed Instructor
FAA Master pilot
www.grizzlyskinsofalaska.com

Anyone who claims the 30-06 is not effective has either not used one, or else is unwittingly commenting on their marksmanship.