Going to put a new barrel on my Christensen Arms Mesa chambered in .28 Nosler. Nothing wrong with my current barrel other than it's the factory 1-9 twist and I've developed a load that it really likes using Berger 195 EOL. Berger tech told me that the bullet will become unstable somewhere around the 700 yard mark, I can't remember the exact yardage but it was up there somewhere. Wondering if I should increase my barrel length, is there a benefit to a longer barrel, 28"-30", what manufacturers do you guys suggest, right now I'm leaning towards Brux