Don't know how new to shooting you are, but have a couple questions that may, to someone experienced sound assinine, but no insults intended as silly things do happen;
When you hold hte rifle up to your shoulder, in what directions are the elevation and windage turrents pointed? Elevation (up/down) should be on top at 12 o'clock. Windage (left/right) should be on the right at 3 o'clock.
Again, may sound ridiculous but where were the bullets landing in relationship to where you were pointing? One foot, 2 feet, 5 feet off? It is entirely possible that the scope is broken, but without knowing how or where the bullets are falling, it is impossible to tell.
Finally at what range where you shooting? 25 yards should be the maximum distance when first setting up a fresh rig, untill it is well zero'ed. One can then move to either 50 or 100 yards, but starting at 25 yards and shooting on a 4x4 sheet of plywood makes it a lot easier to find where the rifle is shooting.
Finally, always, always, always shoot in groups of three before moving your sight settings. This is one way we determine if the scope is broken. Without knowing where you are hitting, and how much you are moving, and where the group goes after that, you can chase your fanny till sundown and not wipe it.
Before going to the range again, double check your rail and mount screws. Assume nothing. Check and be sure the screws are secure, do not over tighten them, breaking them off will make matters worse. Be sure the mounts are not over tightened on the scope tube and have dented/warped it. If this condition exists, a new scope is warrented.
If all is ok, set the rifle up on a pad with the actin open where you can see down the barrel. Choose a picture, phone, blot on the wall. Look through the scope... Where is it? MOve the elevation/windage adjustments OPPOSITE the indicated direction and see if the scope moves where it should go. This is a rudimentary form of bore sighting, but is effective in determining if the recticle is moving properly. Move ony one direction at a time, up or down, then left or right as needed.
If the recticle does not respond properly the scope is broken, and I would suspect a broken scope before a misaligned rail.
Good Luck
Edit: Your barrel is equipped with an extractor, not an ejector, it will lift the cartridge partially, as you describe, it will not eject it. However, you will likely never suffer a stuck case.
