Perhaps I don't have the right search parameters, but is there any information out there on the change of velocity vs temp that gives the change as a graph rather than an average over the temp change? Most temp insensitive powders say they stay within an average of, say, 25 FPS from 0 to 100 degrees. This is an average, even though maybe the velocity with change 20 FPS from 0 to 50 and 5 FPS from 50 to 100. (not actual numbers of course, just a for instance) A powder like this might be better for a target shooter developing loads in 75 degree weather and shooting in the hot summertime, while it might be more critical to a hunter who develops a load in early fall at 45 and hunts in the snow way below freezing. If you understand what I am trying to ask, I would love to hear about your summer vs winter powders. If there are non linear changes like this or if one powder is just tweeked to match the temp across the board. Thanks guys. John
PS: I tend tend to avoid load development in the hot and cold extremes, so critical variations from around 70 up and down for the situation is why I ask.
PS: I tend tend to avoid load development in the hot and cold extremes, so critical variations from around 70 up and down for the situation is why I ask.