Try this company :
https://brassmanbrass.com/They are based down here in Grants Pass. I have used the previous owners services plenty of times.
Prices were always decent, and they have plenty of selections, having contracts with a batch of P.D.s down in California and some here in Oregon.
They also have contracts and connections with Sierra, Weatherby and may still have them with Hornady.
I can't recall how long ago, but they had large quantities of 224 Valkyrie with the Federal Head Stamp.
I know Don Ledbetter who owns it now, but not real well. He is "President" over the local gun range down here in G.P.
I was real good friends with the previous owner. John Johnson was a real good guy...