My 10-22 is not ejecting unless I rem oil the chamber everytime I shoot it.I have taken it apart and everything looks okay.I thought the extractor hook might be wore out,but it looks great.{But I am not a gunsmith}I keep it clean and only shoot CCI mini mags.It has never liked the bulk shells.Is there something I am missing,or is it just wore out?It has had no telling how many rounds through it.Any help will help.Thanks