Still doing some more digging, but found this:
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
It seems you are trying to make a point that wasn't questioned in the first place.
1. Where did Pearce get his info?
2. Did he talk with the ballisticians at Remington where the archives concerning their loading of the 44 Mag was recorded. I am sure they have some.
3. Who said the pressure hasn't been reduced?
4. If the MAP was 43500CUP that is only an 8 percent reduction.
5. An 8 percent reduction STILL would not account for the tremendous reduction in velocity as declared in some declarations made my some declaring individuals on here.
Maybe a 4 or 5 percent reduction at MOST.
6. MPSM is 43200CUP still. But MAP is still 40,000CUP.
7. 40,000CUP is still 36,000PSI depending on the pressure gun type as used by the ballistic lab.
Some like to do like a pigeon does as it releases it bowels as it does a fly over.