For #8, they did not use CUP. They did not pressure test. The manual is unsafe.I heard that speer used cup measurements in their older manuals, then they got pressure transducers and the lawyers went crazy when they saw the data,
Of course, there are some safe loads in it. The issue is that there are some unsafe loads in it.
Please don't blow up your gun while I'm around. I suppose you could loosen it whenever you want, if you can predict the difference.