US-869 temp sensitivity

[nddodd]

I'm currently using this powder in my 300rum and it absolutely loves it. My big question is for anyone who has used this alot in hot and cold temps. Here in Ky it's around 20's and 30's right now but in the summer it's liable to get to 100. Has anyone shot using 869 powder in these type temps before if so what did you experience.

Thanks,
Nathan

 

[DCGS]

I tried it in a 7rum and retumbo. The 869 shot a little better so I called a tech rep and he said it was very temp sensitve. He said the retumbo would be much more stable. Was loading for a customer so with the Retumbo. Dan