Don't own one but have shot a 28 Nosler. I have friends who have the Gunwerks rifles and they will shoot. 28 Nosler loaded with 180 gr Berger bullets and will shoot a sub 3" group at 800 yards haven't shot a 26 or a 30 yet. I know a guy who used a 28 to take an elk a couple weeks ago.

Of the 3, I like the 28. But they also make a 33 Nosler, and I've got a few ideas for my next rifle build in a 33 Nosler.