I have used Brux, Benchmark, Krieger, Lilja, and Shilen. Of the five, I like Brux best, but there is a new barrel I like even better. I shoot a lot with a guy named Bryan Blake; he makes barrels that are unbelievably accurate. He has done 2 28 Noslers for me. My latest is pretty new but has yet to shoot a group 1 MOA or larger at 500. Yesterday it plunked three 195 Bergers into slightly less than 2 inches at 500 yards shooting prone with a bipod. My first 28 shoots .25 to .5 MOA at 500 yards. My Benchmark, Brux and Krieger bbls are equally accurate but the difference is load development: no ladder testing required. With Bryan's 28 Noslers, every load I tried shoots sub .75 MOA at worst. Finding a sub .5 MOA load is fast and easy.
I decided to use Bryan after watching him shoot a 1.9 inch 20 shot group at 500 yards using F class rests. Bryan competes in F class and I think built the rifle that won the recent national F class championship. He is also a hunter. Almost hate to mention him since his prices might go up. He isn't cheap, but good stuff almost never is.
I would also add I was surprised by Benchmark; have an Edge on a Mod70 action, which certainly would not be a choice, but bought it from a guy who said it shoots lights out. He was right.