I load 3/4oz. in all gauges. Once you develop confidence in that load you will be amazed at how far you can crush, not break, a target.
It does require tighter chokes but then again most of my vintage guns have them.
Daniel, your giving that RN those lighter loads surely made a difference that day but trying to convince a shooter, usually a male, that he doesn't need a shot charge over 7/8oz. is an exercise in futility.