Going back to the OP's original complaint, the spent hull isn't clearing out of the ejection port, the culprits may be:
Broken/worn ejector pin (located on the barrel extension piece that fits down into the receiver), port side.
Yoke/Fork, that the bolt rides on and which slides back into the action/recoil tube spring (inside the stock) is bent near the forward section, causing it to bind and not compress into the action/recoil tube assembly during cycling of a fired round.
Action/recoil spring assembly has crud/rust in it that is causing it to bind up and not fully compress or spring may well be broken/herniated, causing a similar issue. Have you disassembled this component and checked it out?
Also, as Z said, the trigger assembly may have a bent/broken component. If, you have not disassembled it, do not disassemble it. Running it through the diswasher can be helpful in getting crud out.
Sent from my Sumerian tablets
Does the number of bands claimed simply mean you have an Ebay account?
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High Potentate, NSSB (no spinning shotcup brotherhood)