Under 2" 100 yard groups with most any ammo.
Nikon, Leupold, Burris, Bushnell 3200, 4200 or??
3.5-10 power is all you will need.
Mine is the DPMS AP-4 308 and I killed two coyotes one morning both were 403 and 423 yards using hand-loaded 110 grain V-Max bullets. Mine shoots just under 1 inch on a regular day.