LOL! … So much for your research. The .280AI is right up there with the 6.5 Manbun and the 6.8 Neckbeard. And maybe the Lazzeroni line as well.So after much research for something outside my wheelhouse of cartridges, I have determined I need a .280 AI.
Scarce factory ammo makes it a tedious handloading proposition, which in turn means a huge expenditure of time at the reloading bench followed by the obligatory range time to vet those handloads.
Nope. Commonly available cartridges can cover all your bases.