I'd be most curious as to how the powder makes it's way by truck/train/ship from the plant to the distributor to the store to the consumer's home without being "tumbled".
Not to mention the hundreds of millions of rounds that have been transported in every way shape and form for war-time.
After the experiments I've seen posted online, wherein some loaded ammo was tumbled for DAYS and then fired over a chrony, with ZERO change from the control batch...
I have no concerns whatsoever.
Still happily answering to the call-sign Peetza.
The problem, as you so eloquently put it, is choice.
He is no fool who gives what he can not keep to gain what he can not lose.
-Jim Eliott, paraphrasing Philip Henry.