Then I'd better start looking for a barrel.
I obtained an octagonal Hi-wall barrel that had been relined, supposedly with a high pressure liner. I understand it to be a No 3 weight, but it seems quite heavy by "modern" standards, and there are other issues like it has a lot of scope base holes, and the large shank, all in all probably a lot of work for an unknown result.
So, (with the memory of Whitey and Joe and their love of discussing projects in mind) what weight and profile of barrel should I be thinking about for a rifle like that carried by SDH's friend ?? Original with a liner ?? New ??
All this bearing in mind that I'm down in New Zealand and just finding a new CM tube here is not easy . . .