Still doing some more digging, but found this:

[Linked Image]

Brian Pearce claims the original SAAMI maximum was 43,500 CUP (down to 40,000 now). It makes sense. Here is a link to the issue containing the article:

https://www.riflemagazine.com/magazine/PDF/HL%20241%20Partial%20(LO)%202.pdf

Last edited by Whitworth1; 02/01/19.
Max Prasac

Semper Fidelis

The Gun Digest Book of Hunting Revolvers:
https://youtu.be/zKJbjjPaNUE

Bovine Bullet Test
https://www.youtube.com/watch?v=mmtZky8T7-k&t=35s

Gun Digest TV's Modern Shooter:
https://www.youtube.com/watch?v=nGo-KMpXPpA&t=7s