I don’t understand....... I’m hoping to get schooled on this one and mean no disrespect by asking this question:

Why would one rebore and line an old worn out chamber and barrel, unless to simply preserve the aesthetics of the original barrel?

A new top flight match grade cut rifled barrel is not that expensive to buy or have installed these days, so why waste time and money salvaging an old tube?

I’d presume that a relining would destroy collector value on a top end rifle, and to my understanding, this is a custom rifle, so collector value is maybe not a consideration in any event?