Sometimes my overall powers of observation elude me. My attention was drawn to the extractor in your first pic. So much so that I didn't notice the broken ejector, stupid me. I can't say with certainty that the ejector is the same thru all models of the M52, but as was stated it may be the same. Take the chance and get one from Gun Parts and give it a go and let us know if it works. Once again this is my first time seeing a broken ejector in the flesh. My thought goes to trying to load a round thru the ejection port and closing the slide on it which is considered a no-no. I must admit that I have have done this on rare occasions but I have gotten away with it.
By rights even single loading thru the ejection post shouldn't break the ejector when compared to the extractor, unless something impeded the round from dropping into the chamber all the way. l would most definitely check for a dirty chamber and check the overall length and diameter of the ammunition you are using. Make sure there isn't a carbon or lead buildup at the end of the chamber that could impede the loaded round from seating. Put another way, something caused the ejector to break. What was the cause of the breakage? They don't break for no reason. The most logical cause is a loaded round didn't seat in the chamber as it should have. If replacing the ejector takes care of the immediate problem and you discover the cause of all this, in the meantime you can keep your eyes open for an extractor which you may one day need. At least that would be my plan. Good luck with this and let us know how things turn out.
Rick H.
P.S. Are the wadcutter bullets flush seated with the case mouth in the ammunition you are using?
