Evidently this a recent thing as Ruger seems to rush guns out the door as fast as they can, just CZ. I own a few RSM's and don't have any problems since they are a few years old and quality back then was excellent. One guy on another forum found that opening and polishing the ejector slot on the underside of the bolt freed up the ejector. Measure your slot and the thickness of the ejector and see if there's a problem there. Polishing the sides of ejector would probably help too. Also, check the ejector spring. If all else fails, send it back to Ruger.