VV N500 series of powders

[TJC]

Has anyone seen or done a study of temp sensitivity in the N500 series of powders ? I'm particularly interested in N550. I hear it's not that temp stable but am curious what that means in terms of a fps/temp relationship. Thx

[DaveT]

I use it for 123g class bullets in my 260.....brill powder.

 

Not had temperature issues but once had a tub that just seemed too fast burning compared to every other one I have bought.....tossed it.

 

Guess the best option is not to push the load limit too hard and recognise that if you develop loads in Winter you need to be wary in Summer.