I reload almost all of my ammo so I am not too concerned about ammo availability. I have only bought 50 brass so far but I also have an fair amount of 280 remington brass I can fire form if needed. I received a 280 rem when one of my great grandfather's passes in 2009 but I passed that on to my brother a few years back when he was old enough for his first youth doe tag.
I also have a boat load of old lacy city 30-06 brass I could turn into 280ai brass if I really needed too.
Believe it or not it is easier to find 280ai ammo vs 280 rem during "normal" times