Re: Surplus Powder
It is not that we have nothing to worry about, but ambient temperature has always been a factor, when handloading.
What I would like to say is that temperature sensitive powders are not something to avoid like the plague. What I see from new shooters is that they have picked up on the buzz word like a duck on a june bug.
I have yet to use a new and improved temperature stable rifle powder; but I am careful about not exposing hot loads to sunlight, and clearly mark all subzero loads with a sharpie, or equivalent.
The other thing is that I seldom (truly) max out a load, I prefer maximum case life, to the last few FPS.
In short, I don't see the problem; or to be more precise, I think the problem is vastly overrated. A product of the Marketing Dept. and mandated by the lawyers.
But, that's just my personal opinion.
Good hunting. LB