A lot is made of the temperature sensitivity thing. I’m sure it’s important to some, particularly our military that stores and uses ammunition in all sorts of climates, but for me, it’s almost a non-issue. 95% of my shooting will be done between 50 and 90 degrees. I’m not too concerned about performance at below zero temps. I won’t be there. I’ll take all the IMR4895 (and IMR4350) anyone can spare.