Most precise (and durable) ligthtweight Faxon barrel for recommendation

[grayfox]

A good, well-cut barrel will shoot regardless if it has 5, 6 or whatever lands. There is a slight deformation advantage for offset (odd-nbr) grooves due to not squeezing the bullet between two opposing lands, at least that's the marketing. Possibly true, but the real difference is in how accurately the grooving is made and how well the inside is polished (or not).

I do tend to like the 5-groove barrels; however...
My Creed criterion barrel is a 6-er and it shoots sub-moa out to 600 yds... so there ya go. I'm happy with all my boys right now.