MY .223 ISN'T EJECTING PROPERLY. WHAT SHOULD BE THE EJECTED CARTRIDGE KEEPS STICKING IN THE RIFLE AND GETS HUNG UP WITH THE NEXT BEING FED INTO IT. TRIED CHANGING AMMO. TYPE, AND STILL HAPPENING. IS THIS AN EJECTOR/EXTRACTOR PROBLEM? WHAT CAN OR SHOULD I DO? IS THERE SOMETHING I CAN DO MYSELF TO RELIEVE THE PROBLEM? HELP!