Most precise (and durable) ligthtweight Faxon barrel for recommendation

[Londerko]

A good, well-cut barrel will shoot regardless if it has 5, 6 or whatever lands.

I agree with you
But to answer R2BROs specific question, No Ballistic Advantage barrels are not 5R
If that is something you were wanting i hope you were able to cancel your order in time. But I’m sure it’ll shoot well, I’ve been happy with mine
-Leo