Like most things, it depends. It depends on whose number two – a Bart 2b will get you there.

You’re REAL close with the Remington sporter as well.
https://riflebarrels.com/wp-content/uploads/remsport.pdf

It also depends on if you are wanting to buy from stock or willing to wait to order. Most of the manufacturers, if you are custom ordering, will allow you to spec a certain diameter at a certain distance. If you tell Lilja you want a Remington sporter contour that measures 0.63 at 20 inches, they can do it. Just be sure to be clear that it’s 20 inches measured from the initial taper etc. so there is no confusion.