I'm surprised no one in NZ has started doing Tikka shouldered pre-fit barrels.
Tikka and Sako would be the most common hunting rifles in NZ, and Tikkas especially popular for rebarrelling.
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Minimum price for a contoured barrel blank in nz is around the $1000 mark.
These guys could be an option for cheaper but the quality and accuracy might not always be there.
https://www.gmriflebarrel.com/