I'm aware of that ,not my first rodeo,been doing this for over 40 yrs. As I stated ,I hadn't looked at data ,had no idea if it was middle charge or max .Now ,having a look see at the Hodgdon 2016 annual manual 23.2 is their max at a listed 55,000 psi . I would never take a load off the internet and load it up on someone's word ,nor start at a max published in a loading book.
I was asking his opinion
Concerning the ? marks......why do you ask? Does it bother you? If so , it's way more things going on in this world to get bothered by.Have a nice day