I use Hornady & Nosler brass in a couple of short action cartridges. Given a choice, i'll take the Hornady. Not quite as consistent maybe but stronger IMHO. The Norma brass I use in the 6.5WSM is pretty dern consistent but kinda soft compared to the Hornady Lazzeroni brass I use IMHO (keeps me out of trouble I guess
Hornady has stepped up their game, hats off to them. I'm not trying to say Norma/Nosler is bad because it's not. Just stating my preference in the short action & short mag cartridges.
I think you will see a lot less fouling in your new custom barrels. I've had good accuracy with factory barrels but have always gotten more fouling. I'd like to hear your results when you get a chance to share.
Where are you with getting your new rigs put back together?