338 data request
 

Does anyone have a favorite recipe for 250 gr in the 338 BR using H-4198,VVN 110,or VVN 133 with a 1050 fps velocity?...TIA

I use Quickload to work our suitable powders, seating depth and case fills.
You don't mention imporant details such as barrel length, which particular bullet, and whether it needs to operate a gas system.

I use actual experience. Any load that gets 250 grains out the barrel at 1050FPS with the powders I have listed,is close enough for me to fine tune to my particular barrel.