The proper sight picture with a ghost ring is - top of the front sight post centered vertically and horizontally in the rear ghost ring with the top of the front sight at the POI on the target. In the pic it looks like your a little to the right some, and a hair high, but that might be the way the pic was taken. You have the idea though. The rear apature looks a little big though, is this a flip sight with a smaller aperature available? If so try using the smaller apature instead. Large apatures for combat style ghost ring sights are ganerally intended for "gross" hits on moving targets and a little larger field of view in lower light conditions. The smaller apature is a little better for accuracy.
Sight adjust the thing at 36 yards on a two inch center mass area, and with doing everything right you will be within about 1 MOA average at 100 yards and still pretty much dead on under 100 yards.
If the target is an indication, might want to concentrate just a little more on consistant breath control and trigger squeeze but your not too bad on that. Maybe a little more consistant grip and position too along with cheek weld - it looks like either your cheek weld or sight picture changed in some of the group patterns - one area indicates a weakness in grip, and I see a tendancy to walk right with the shots which a lot of times can indicate grip or position changes to "fight the weapon" as the weapon fires, if everything is correct the weapon should settle back into the same exact position each time after each shot recoil, if your fighting the weapon to bring it back to position most times you change grip tension or alter position slightly to do that and can lead to what appears to be rounds walking, don't fight it, if everything is correct and consistant the weapon will come back to the same position each time between shots. Its hard to tell exactly from the pic though. For a standing position though you do have a few good groups there. Your right handed aren't you?
