Re-15, or Varget. Anything over 2500 fps. should work fine. I get just over 2400 fps. with 42 grs. of Varget and a 200 gr. Nosler NP.
I've found that Hogden's load data very good. Just keep in mind that some cases, like Federals and Lake City don't take near the powder that WW cases will. That will also reduce your velocity. E
