Mark, You are in no man's land there, pal. Save your time and quit looking, you won't find much, if anything.
You have two choices here.
1) Invest in a good chronograph and do your own.
2) Go to the Beartooth Bullets web site and work out some on their ballistic calculators. But, you need reliable velocities to do that with, so back to option 1.
Chrony isn't a bad choice, but I was not terribly impressed with it, so got an Oehler. The thing about them is that you will find it needs to be set up a bit further away that specified, as the muzzle blast from large charges really screws them up. I think they specify 10', but I found 10 yards worked better. Making a blast shield for them helps, too.
Enjoy!!