They are in Wolfe's "Wildcat Cartridges I&II" combo edition.
He built it on a Sako L-461 Mannlicher stock. It would be much easier to build a 25-45(25-223) with factory dies, cheap brass and modern load data, you can always load it down a little to match Copperhead performance.. I looked at the 25 Copperhead back in the early 2000's and in 2005 built a 25-204 after looking at the 257 Kimber(25-222 Rem Mag Improved).
