In the last 11 seasons of hunting here, since moving to Canada, we have managed to take a buck each every year & in some years an additional Doe or 2.
We do this with a couple "modest" centerfire rifle/scope combos. They/we produce honest 1.25 MOA groups.
For me, woodsmanship & knowledge trump all.
I'm also not really interested in group shooting, other than to verify consistency.
What I work very hard on, is knowing exactly where my cold bore shot is going to impact !
My .02, YMMV