Relined barrel - what is that?

[P08]

While reading about old Mosin Nagant rifles I came upon the phrase "relined barrel". What does that mean exactly?

I presume it means that it has been restored in some way, but how? Can it be that the rifling has been renewed?

Sorry for this partly off topic question, but I don't know where else to ask.

[Laurence Strong]

To the best of my knowledge thats what it means, how they do that I am not sure, I think they bore it out and install a new sleeve in the barrel.


Seems I was mostly right, I went and "asked Jeeves", and what I mentioned above stands, but after they put the sleeve in, they then rifle it to the correct caliber!

Hope this helps

[P08]

Thank you. This enables you to restore an original gun yet still keep the original part (barrel). Nice. Unfortunately it's probably more expensive than simply replacing a worn barrel.