I yam cursed because I like 7mm Caliber.
Three of my favorite cartridges, 7x57, 280 Rem., and 7mm Rem. Mag. Are all underloaded in terms of most handloading data.
The 7x57 because of OLDER guns chambered for it,
The 280 because of non BA guns. ???
The 7mm Rem. Mag. because of reasons unclear. ???
Anyway, loading data is often less than what I would expect it to be. I doubt the max is really max.
My Speer Manual #12 lists lighter charges for max, than my Speer Manual #10
Smitty of the North