PJ....in your post on page 2 you said you didn't notice much difference in poi. Which was kinda, sorta my point. But you are dead on right, powder choice on your bench is a matter of personal preference. When a poster asks for input from other's experience here, I don't think any of us try to lead him astray. I was merely pointing out, in my flawed communication, that the military felt quite comfortable loading millions of rounds with ball powders for a variety of climates. My position is, perhaps we are overthinking temp sensitivity...any small change in MV is generally overshadowed by the variables in shooting game animals offhand at varying ranges. Admittedly, the new trends of long range sniping of game animals may benefit from more stable powders.
