one of my .223H&R'shandi rifles seemed to have problems ejecting also after i cleaned it. i think it was just from oil left in the chamber.i have had good luck with it after i started drying the chamber after cleaning with a .410 mop. i know guys that carry a short piece of an old cleaning rod about 6 inches long to just drop down the barrel if you get a failure to eject. it does take much to clear the jam just a little bump from the rod. i called H&R about the problem and they said they would polish the chamber for free if i wanted to send it in. between drying thechamber after cleaning and using winchester white box or the black hills ammo the problem has been cured.
