In my earliest manuals , HiVel and HiVel 2 are listed as producing 2700+/- in both the 300 and the 3006. I can't find my lyman #1 right now but Speer #1 from 1954 lists them both at 2700 with the 150g and a almost identical load of hivel. HV 2 is very close to 3031.
Jst my 2 sheckles worth I still have a tiny amount of hivel just for because!!!
And a good 2 sheckles worth they are. I guess one could try to duplicate the loads with 3031 and come to some conclusion on possibilities. Or read the load data tables but that wouldn't be as much fun.
