Thanks, Gunner. I have lots of data on the 348 and have done a lot of testing myself ( I have a huge excel spreadsheet) I started with Mule Deer's powder guidance and Varget for the 200gr Hornadys and H-4350 for the 250gr Barnes or Woodleighs works great. I think Betetz once posted some good loads with RL-17 but I can't find them

A good principle to guide me through life: “This is all I have come to expect, standard lackluster performance. Trust nothing, believe no one and realize it will only get worse…”