The 150 gr. bullets are almost gone and I've got 125 gr. HP for my 30-30. The velocity that I'm going for is a little over 2600 fps
After having dealt with several 30-30 handi's as well as 30-30 Toppers, it appears to me that each one was/is a little different in chamber size and bore size. Thus when working up loads for these rifles, it is difficult to name a starting and cut-off point for propellant charges. Back in the days when both me and my hunting buddy had the toppers and now he has a handi (I sold mine) we had as much as three grains difference to reach the same velocity.
We have reached 2600 ft per second with the Barnes X bullets in 130 and the 2700 fps is possible from the handi. From what we could tell getting that out of the older toppers is harder to do. We did this with W748 propellant and magnum primers with RP or WW cases.