I am not the expert here, so I may make a miscue. I have never heard of a stainless steel 22 Hornet. Is it nickle plated? Back to the ejector - The 22 Hornet is a rimmed case, I cannot imagine the ejector not catching the rim. There should be a small shoulder (or step) at the top of the ejector when looking from the top down. Check to see that the ejector is under the rim when the action is nearly closed; it should be. In fact it should hold the case from going into the chamber; only going in as the action is closed. If it is not, then the top of the ejector is worn off, broken off or it has a wrong ejector installed. Good Luck and Good Shooting