So my grandpa gave me a Marlin 7000 a few years ago and I haven't shot it very much. I took it out a few weeks ago and it kept jamming (double feeds, stovepipes, etc.) The magazine fits in the gun pretty loose, but from what I have read on other boards this is a common issue. I figured out later in the day that if I held the magazine tight in the gun or rested on the mag while I was shooting, it would jam a LOT less often. From what i could tell from manually cycling the gun, it seems like the extractor is not letting go of the shell after pulling it out of the chamber. I got home and put some more oil on the extractor and bolt and cycled the gun manually and the oil seemed to help, but I haven't had the chance to shoot it yet. Has anyone else had this problem??
Gun:

This is what it is doing:
Gun:

This is what it is doing:


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