I just got back from Sportsmans and I looked at the (lack of) ammo on the shelf. Just for giggles, I looked for 30-06 bullets. None, not one box, and no way to make any if you could because every reloading component is gone too. So, what's up? Is it just Sportmans and their usually poor inventory control, or, is there really that short a supply of ammo? I would be worried if I did not load my own ammo. There is a least 20% of the shooters using the 30-06 for hunting on this forum. Do they all have enough ammo for the upcoming hunting season? I would guess not.
By the way, if you shoot 300 ultra, you are covered just fine. This may be the only time in history that the less popular calibers are easiest to find.