J frames are tricky if you have big hands. i don't shoot my 34 very well either with the magnas. if i put a big ugly set of pachs on it then i can shoot it much better but it looks like schit.
Pretty much my problem too. I shot 6” gong at 100 yest with my super blackhawk but i cant hit a coke can consistantly at 20 steps with that 63.
