Similar boat. I started with 7 and I am down to 3. I have been looking at 280 AI vs. 270 WSM vs 6.5 PRC. Each has pros/cons. All have fairly light recoil with 6.5 PRC being the lowest. 270 WSM is the flattest of the 3. 280 AI least wind drift. The variable I have the least control over is the wind. For that reason I'm leaning 280 AI but all 3 buck the wind fairly well. For a deer/pronghorn gun the 6.5 PRC seems sweet. For an all around gamer the 280 AI or 270 WSM. I eliminated 6.5 CM first b/c it had the worst ballistics of the 7. 270 WIN eliminated d/t wind drift. 7 mm RM and 7 mm PRC eliminated d/t recoil. FWIW
I have a 280AI I assembled and a Tikka 6.5 PRC. I just got the PRC (1 box of ammo), but the recoil on the 280AI is notably harsher than the PRC.
But, I would be willing to hunt larger game with the 280AI.