Mule Deer, it never gets to 0f here. Have shot R17 loads with 168s, 180s and 208s at around 40C with non moly bullets and had no probs.
I find about 20-40fps difference between hot weather (about 40c) and cold weather (about 7c) with these loads. That's as wide a variation as I get the chance to shoot in.
Will try to find the link to those charts for those asking. He tested lots of Alliant and H powders with bullets 180 to 220g from memory.
Think it was the ACCURATERELOADING forum if someone has the time to search. I'm on my meal break at work and venison curry is calling.
