I have a Rem 11-48.the gun shoots fine but will not eject the shell when you shoot.You can manually pull it back and it will eject the shell and put a new one in fine.Any suggestions???
Take a brush the correct gauge and scrub out the chamber really good.Bet it has a build up of plastic from being shot.Check your magazine tube also as this is a recoil operated gun and see if it is clean.Use oil sparingly on the magzine tube or it will kick hard!
It could also be the ejector. It'l work if done slowly by hand but not under the speed and pressure of being fired.
The 11-48 is an old gun and if you still have the same one it it, it very well could be the problem. I got one in 410 that I have put up for Grandson too