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Old 05-09-2021, 08:45 PM
old 39

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Dec 2013
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I think I know why the last round doesn't eject. When the magazine is loaded the top round exerts upward pressure on the extracted case and and holds it firmly against the extractor. The extractor has to overcome this pressure and this is what kicks the empty out. When there are no cartridges in the magazine you don't have that pressure and the empty just rolls away from the extractor.

As an experiment, try removing the magazine before extracting an empty. The empty will probably fall straight down into the magazine well. This is because the bolt faces on 457s and 455s are wide enough to accomodate magnum as well as long rifle cases. The long rifle cases aren't held as firmly as they might with a dedicated .22 long rifle bolt and they need that upward pressure from cartridges in the magazine in order to eject.
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