If money is no object and you want the best brass get RWS. Very uniform, absolute top quality. 50 pieces will outlast the barrel. Dave Tooley at Tooley custom rifles
(BR central) also stocks RWS.
"Randy in VA" on this site and BR central is shipping it in to the US and selling it. Cost is around a $1 a piece.
No need to turn the RWS.
Suggest you send your FL die to Jim Carstenson at JLC precision (email@example.com)and have him convert it to bushings for $48. I like the converted Forester BR dies with micro seater.
By using bushing die you can limit work hardening the neck by overworking the brass.