Title says it. G19 Gen4, hitting High-left... Actually, grouping is tight.....dug a nice, small hole in the dirt beside the soda can at 20 yards. (Yeah, I know it's a long way. But it makes problems easier to diagnose.) http://blog.hsoi.com/2009/06/15/correcting-handgun-shooting-problems/ This didn't help, same results with a bench rest and another shooter. Maybe the sights? Or the pistol.. Maybe I've lost my touch. Been shooting a long time, never had this problem outta any Glock.