Bigsteve. Yep, when cycling by hand the cartridge is ejected. It's only when the cartridge is fired that it fails to eject. I haven't had a chance to test the gun since I made some modifications to it. I need a nice warm day when I can concentrate on the gun, not on keeping my butt warm.
I trimmed 1/4" off the recoil spring and I have an 11mm nozzle installed. Hopefully that has fixed the problem. But I won't know that until I shoot it again. I'm positive that the 9mm nozzle would have worked but that would have caused too much stress on the gun.