Vanguard S2 / Howa 1500 (same thing) best bang for the buck for a hunting rifle that's guaranteed to be Sub MOA... And not caramels sub-MOA... ACTUALLY within an inch at 100 yards...
I usually don't jump in on the whole you need X calibre for animal Y and you HAVE to have at least that calibre, it's 90% bull####.
With a moose though, seriously .308 or 30-06 is a safe minimum, they can kill and be aggressive when threatened and they are big, big creatures.