It all depends on how Lee compiles their load Manuel’s. If they are referring you to powder manufacturers then it’s likely that the load data presented in the Lee Manuel was not test data that they themselves generated.

Every load Manuel has some errors in it, despite the best efforts of editors and technical experts they cannot catch everything. One of the reasons you get many revisions. The Lee book is old enough that I would consider it outdated, manny companies post updated load information online now, and that would be the first place I looked.


Reloading...it’s like knitting for men.