Thanks for all the replies!
Old70, if you don't mind, how much leverevolution are you loading with the 150? I've looked online but can't find data for that powder, not even on Hodgdon's website.
As others have said, 3031 works really well, and I’ve found decent accuracy with TAC and RL15, but I’ve gone to leverevolution under the Speer 150 for my .30-30. Great accuracy and 2400 fps from a 20” Marlin. More than a match for any whitetail if applied properly. Good luck with finding a load.
Old70