The pin/plunger is the ejector, not the extractor. It's what pushes your spent brass to the side so it falls out the loading/ejection port.
You may have a primary extraction issue. A shim inserted between your bolt handle ramp (on the side opposite the bolt handle) and the rear baffle might help you pull the brass loose.
If it were me, I'd probably push a wooden dowel down the barrel and bang on it with a hammer once I knew the bolt was lifted all the way up.
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