A freind of mine has a new Springfield 1911 (the GI replica model), and he's having some issues with it. Once every mag or two, a fired case will extract but stay wedged under the extractor and fail to eject out of the slide. The cases are stuck tighly enough that we can't pry them out; to fix it we have to drop the mag and rack the slide - pulling the slide back open will eject the case. Any idea what's causing this and how to fix it? My though was that the extractor might have rotated around a bit, but it doesn't look like that's happened.