the limitation then becomes the shooter, the wind and temps and the glass.

I got a Nightforce with the 2DD dot reticle (36 x max).

My eyes have issues with thin lines (and irons other than peeps are out) the dot does well for me.

Leupold has a series of dots, 1/2, 3/8 and 1/8. You can order those with any of their glass.

some bullets supposedly settle down out past 100 yards and you can get better MOA, I don't think the way I shoot you could see that