AHEM....."probably" is the key word here. The flip side of that is there could possibly be a problem.

The only thing that concerns me really is what I understand to be the dangers in using old data. From what I understand, it's not that old manuals are wrong, but they are just not NECESSARILY right for powder brands as they are currently made. like one type of powder today might be hotter than it was 30 years ago and hence dangerous to use old loading data.

Apart from what I just said, I don't see why certain loads were ok 30 years ago but are suddenly unmentionable today