Remember you can always add the two components to the casing unmixed, close her up, then tumble remotely. Depending on how much airspace there is in the casing and how much agitation they're going to see on the way to the firing site, you can even omit the tumbling part... That's pretty much as safe as it gets.
really.....i've often thought about that in past.........
is that really a safe option ?????
thing is, with a simple mix of powders.....there is going to be some seperation.....i.e bigger particles rise to the top.....
from my experience, KNO3/mg based flash doesnt need to be mixed ALL that well to get good results...i normally mix it using 2 paper cups, carefully moving the mix from one to the other...about 4 moves from one cup to the other, and it seems to be uniformly mixed.
so if i place .7 g KNO3 and .7G Mg in the casing UN mixed.....and perhaps "roll" the contents in the sealed tube.....thats safe ??
as i said, i had considered it in the past, but as a relative "newbie" i didnt want to suggest it, as i saw it as not all that safe......
I'm let to beleive that in commercial flash mixing, they do large batches in a container that is tumbled remotely.....is that true ?