WaffenMitUns, I've never owned one of those but I have had the opportunity to inspect and handle a few.
They are certainly well made and well balanced pistols. They are also very accurate as long as they are in decent condition and have good bores. The pistols I had a chance to shoot were being loaded with Winchester 9x23 cases. I have no idea if it had to be modified or not. It was certainly loaded to safe specs as the owners were both very astute and professional about such things.
Nice looking pistol. They came in varying condition. The Austrian offerings were usually very good. Some of the South American offerings were fair only. Is your Chilean as good on the inside as it looks on the outside? It's hard to tell from your pics, has it been refinished?
The two Austrian pistols I am familiar with, had finishes that would compare to very decent commercial finishes.