Must be all voo doo and my chrony has some too. .Maybe old Clarence uses a little voo doo on his guns? lol
As for the powder charge, 137 gr of the same stuff gives me
3250 in a Big Baer case from a 34" barrel.
With no voo doo of coarse.
Daryl Cassel claimed he got 3200 from his 338x416 improved on a Hall action built by Bruce Baer. When i questioned Bruce about that he just shook his head and said no he doesn't.
Then added, and if he did he would be chucking the new case after he got it removed it from the gun.