has it always had this issue or developed it after years of use?
could be a worn out extractor or spring
if is a cycling issue and not an extractor issue..... check for carbon build up in the gas system
to check the extractor, next time you are at the range, point in safe direction and dry cycle a mag full of ammo, meaning load and eject without firing, manually operating the action until the mag is empty. If the rounds all eject, you can rule out the extractor and start looking at other causes