Have you guys ever seen this website? I found a link to it in one of the other threads on here. It shows taking CS up to 4gr with a 147gr bullet. The Shooters World site only had going to 3.7gr.
http://www.natoreloading.com/d032/
I worked my way up to the SW max of 3.7 but found my MV to flatten out at about 850fps which puts me perilously close to 125pf minor limit.
It seems strange that 3.5, 3.6, and 3.7gr would be the same. I was weighing my charged on my fx120 scale so I feel confident in the charges. OAL for all was 1.124". I checked about 10ea of them before cranking out 50ea on my 750.