I'm looking at ordering a Rem 700 barrel.
It appears the barrels are not complete, they are not chambered, threaded, cut to length or crowned. Is this typical? And after purchase I take this to my local smith and he does the chamber, threads, cuts to length and crowns the barrel? I just find that really weird.

I've never done this and I'm surprised this is how it works, I've been looking at Douglas, Hart, Kreiger barrels etc.

Someone enlighten me on what I need to know please.