In addition, you can take a diamond hone and tweak the nose of the ejector. The one I was taught looks like the right side example in the image below, and tends to encourage the cases to throw a little higher and more to the right. The only drawback is if your gun doesn't have a rollover notch along the back edge of the ejection port, the faster spin it imparts may ding a few more case mouths.
I saw a bullseye match gun do what yours is doing one time. The gun's user was not its normal owner, but his girlfriend. She just didn't have enough solid mass behind the gun. A light grip or failing to straighten the elbow behind it can let the gun flip up and rotate counter clockwise enough angle the ejection port toward the shooter's face. The solutions are to alter the grip, install a square bottom EGW type firing pin stop to delay opening a little (this reduces flip), or to try a heavier recoil spring. The lighter the gun and more powerful the load, the more chance there is of this happening.
