Thread: JW15 failure to extract

Mine had just this.
It got so you had to work the bolt quite vigorously to extract.

Arthur Cleland went out the back shed and found two somewhat corrosion roughened "new" extractor claws, which I cleaned up with steel wool and installed (careful with the circlip). Problem went away immediately and permanently. I don't think it was due rough chamber, grunge or strange ammo.

Yes, I'd try careful filing as GunDoc suggests. You don't have anything to loose.