I think this may be an inherent design issue with autos made to shoot revolver (rimmed) cartridges. I remember my dad had the S&W version of the Model 39, designed to shoot .38 special (don't remember the model number they hung on it.) Extremely accurate...you could shoot the balls of a gnat at 25m, but it was very unpredictable as to where it would launch the brass. OTOH, I have a stainless Colt 1991A1 in .40 S&W that groups its spent cases tighter than it does shot bullets! I can empty three or four mags, do a right face, take one step forward, and pick up every last casing!