R19 Cold Temp Issues?

[BWALKER77]

I live in Montana. Given this I see zero reason to use a powder that isnt temp stable. Preferably a Hodgdon Extreme powder.

 

[RevJim]

I have some WW cases with Hornady 130sp and some Nosler cases with 129LRX loaded. I am going to try to work up to 59.5 R19. I did find/order some R16 and some RWS brass ( just for grins) and will most likely use R16 for the stability. Utah can get some pretty good temp swings in Fall. I've seen it right at freezing to 85 deg in one day! Thanks for the reply Pard. What do you hunt with? rifle? Load?

 

[RevJim]

Update: I just made the decision to stick with the Hodgdon Extremes, or other known temp stable powders, ha. No use tormenting my OCD selk! Thanks for the replies guys!