I try to use powders that are temperature insensitive as the chronograph will show a loss of speed in very cold temperatures. This obviously effects holdovers downrange, let's say over 300 yards. It is not uncommon for me to hunt elk in below zero temps and I have found a loss of 100-125fps with some common calibers in the past. I haven't hunted in those low temps in Alaska but I am sure many of you here have. As a result, I use a lot of Hodgdons Extreme powders.
So, with all the attention paid to runout, COAL's, extreme spreads and the like, how much attention do you guys pay to temperature insensitive powders?