I do. I just adjust to speed shown, start with something in the 52-54 kpsi range and work up load with good chrono. When your at predicted speed you will be close to predicted pressures (even if it takes a bit less or more powder to reach predicted speeds).Mark that is my thread there. Question with those quickloads are can you just start using them with out having fired brass? I had started to dive into the quickload sticky thread they had addressing all questions
What velocity are you seeing with 4451?