Vihtavuori and temperature

[jbs2014]

I have heard that Vihtavouri is very temperature sensitive? But, due to it being cooler outside I have not been able to verify that. Do any of you have any first hand experience with Vhitavuori to be able to confirm or deny this temperature rumor?

 

[JeffVN]

I used V.V. 570 in my .338 L.M. Improved for several years until it became unavailable a few years back. i had no pressure-related problems with it in the desert around Las Vegas and used it year round (Temps roughly 29ish to 110ish). However, I did my load development during the hot season, and make a point of not letting ammo sit directly in the sun.

Jeffvn

 

[Lonewolf74]

I have heard the opposite, at least for N570 and that it is amongst the most stable out there.

 

[CA48]

I've done some simple test with n570 and it's proven to be very temp stable. Don't have experience with any other VV powders though. Looking forward to others responses.

 

[jbs2014]

Thanks everyone. I like the Vhitavouri for 223 and 77 grain Berger bullets. I had a decent load worked for it but I developed it in the cooler weather