Well ive been tuning up my Savage .308 model 11/ Nikon Monarch 4-16-50 bdc and my DPMS .308/Nikon Pro staff 4-14-40 bdc for deer season. Took them both to 425 yards and then took my DPMS to 525 yards. Now im not getting 2" groups or anything (Yet) but I was hitting center mass on the target. Like the title says its a start. Im stoked!