Where can we read more about this?
I'm not sure if it was ever written up - it it was, maybe one of those old Long Range Shooter newsletters?
Otherwise, you'll have to rely on my worm's eye view and memories from @ 40 years ago (spring/summer 1985).
I can tell you our .50 cartridges were hand rolled like Cuban cigars
A) .10 or less runout on a lathe
B) Annealed brass
C) +/- one (1) grain on bullet weights - so 699 pile, 700 pile, 701 pile
D) +/- one half (.5) grain on powder weights
Additional // The Raufouss was jamming in the Barnett at the time and until they unfucked that issue, they needed to see what a Raufouss could do in a .50 that wasn't jamming. Hence, the accurized BOYS.
As I (vaguely) remember, Raufouss go boom.