In my experience with 39's, extraction problems are usually the result of dry-firing. This will raise a burr at the top of the chamber that makes extraction difficult. It also will shave lead from the bullet and gets in the chamber putting a bind on things. A Menck chamber ironing swage tool will fix it in a jiffy. Also, check the cartridge guide(thin strip of metal inside top of receiver) to make sure it is not snagging on the spent case.
