As we all know just about all types of ammo is sold out. First the first time in my life I can not find 30-30 Winchester, or even 270 Winchester.
You want to know what I can find? 280 Remington / 7mm Express.
In the mid-1990s I asked for and received as a Christmas present a Remington model 700 mountain rifle chambered in 280 Remington. In the 1990s and into the mid-2000s 280 Remington was comparable to 270 Winchester and 30-06 Springfield. Over the past decade or so 280 Ammo went from around $18 a box to close to $30 a box for Remington core-lokt.
The writing was on the wall, either buy another deer rifle or spend a fortune on 280 Remington ammunition, so I opted for a 308 Winchester and a Marlin 336 chambered in 30-30 Winchester. This gave me three deer rifles in proven calibers.