X2The 6.5-284 Norma will do everything you need for what you described. It's a great cartridge. If you're picking 2, I'd go with the 300 Win Mag and the 6.5-284. Ballistically, the 280 Rem is close to the 6.5-284. The 300 WM gives you more if you ever want or need more, plus I feel everyone should own at least one 30 caliber
I own a 6.5-284, 280 AI and 300 WSM. Love every one of them for different reasons and I just like having multiple rifles in different cartridges