Std 280 SAAMI spec reamer, 162 at 2930 on 24" with Fed 210 and IMR 7828 is a load right out of the Nosler #4 manual.
Now bump to a 280 AI with R#26, and you are at 3030, again, depending on barrel length
If you go 7 Rem Mag on a 28", 162 at 3200 with Retumbo is real world with 215's, and this is where the 7 stw and 28 nosler is also accurate at with 3350 being top end.
I have been through several 7 STW's.
The std 7/08 will get you 2700+ on a long barrel with 162's, possibly 2800. It best to put Wyatt's mag box in a Rem 700 for use with those long pointy bullets as you can not stuff them down in the case with the slow-burning powders taking up all the room.
The standard 280 Rem loading data in reloading manuals are dumbed down due to pumps and semi-autos. In the 280, with 180g eldm, accuracy node is at 2700 fps+, depending on the barrel length...run the numbers, it is impressive with only a smidge of powder....some things you just have to witness for yourself.