Dumb question but how are you using the iron sights? Are you using a combat hold (line up dots, with the dot covering your intended POI) or center hold (the tops of the iron sights are the center of your POI) or 6 o clock hold (where some people choose to keep their irons way low of the target for some reason)?

The S&W pistols are generally all combat hold. Meaning you line up the dots and place the dot over your intended POI.

If you are doing a 6 o clock hold, keeping your irons way low of the target then it could explain shooting low but at 15 yd that 4 inches is still a huge difference.


https://www.nrawomen.com/content/und...ight-pictures/