powder temp sensitivity question(s)

[Thelaststraw]

I appreciate the information. My load development has been done in 88 - 95 degree Louisiana heat so I'm safe there. If I won't be looking at too much more than 1 fps per degree at say 50 degrees it may be tolerable. I'll do more load development during some cooler weather coming up and give the H4895 a shot and see what it gives me.

I've heard it said that temp sensitivity is cartridge dependent but never understood how or why. Thank you for the help.