The 28 Nosler or any of the larger case capacity .28's really need, at least, a 28 inch tube to use all that case capacity in a .284 size bore. If you plan to use a 28+ barrel the big 28's will show their horsepower, but if you plan on staying in the 24-26 inch length, you can sling, even the 180's, pretty much just as fast with a 7mm Rem mag or my favorite 7mm Blaser mag.
I have a 7mm Blaser mag built on a Rem 700 with a 26 inch tube and I'm shooting the 180 Bergers 3088-3100fps