Re: Rem 870 ejector spring question
Like most guns except blowbacks, the 870 extractor must not only pull the fired case from the chamber, it must hold onto it while pulling it back against the ejector. If the extractor is not doing its part, it will drop the fired case/shell before it can reach the ejector. That appears to be what is happening in your case. I don't know what "minor adjustment" you have made, but I would replace the extractor, plunger and spring. The three parts cost only about $25, cheap to get a working gun.