I'm zeroing my AR15 at 25 yards non magnified. It took me 10 shot to get the center (the other 5 shot is already cover with that sticker). Then put small stick-on target and fired 3 shot. Still dead on zero. I know it sucks that it took 10 rounds to zero it. But my scope sucks. It has 6 moa and it's covering the center target at 25 yards.