I've had a J frame for 30+ years. I don't know whether or not it shoots 3" low at 7 yards. I do know that during practice and qualifications I hit center mass on a silhouette target out to 25 yards with a reasonable pattern. Anyhow, that's all I ever worried about when I carried it. However, I do know that with snake/rat shot it has a 6" pattern at 6'. I wish I was as good with mine as Steve McGarrett was.