I am in the WTB category despite stocking up on components. Problem is my wife bought me a 308 Win for Christmas and I have never shot or loaded for that caliber. It has been hard getting components to shoot it and loaded ammo is seriously over priced right now. I have found brass and bullets and I have plenty of primers but what is killing me is getting powder. All the powder I have is too slow burning for the 308. Been loading 7mm Mag and 375 H&H for decades and can load for those for at least 5 years. But those powders are not usable in the smaller case.
So, in my case it isn't about getting caught unaware, I never had the need to buy anything or the 308 until now.