ORIGINAL: 3000fps
I am having a hard time finding someone who has reloading dies for the 257 Weatherby Mag.Besides RCBS who makes good dies.Nowhere I have looked has RCBS in stock
Redding, Forster, Hornady & Lyman all make quality dies. Try contacting Huntingtons in CA. direct.
http://www.huntingtons.com/ Bet they can fill your needs.....