I don't know how the Rossi ejector works, if it is a simple spring powered ejector with no primary extraction like the H&Rs used to be then you are seeing why H&R went to a mechanical extractor in their newer models. Perhaps some of the H&R modifications will work here, such as adding something behind the spring to put more pressure on the ejector. The .243 was the main problem child for H&R, I got the wife a new superlight in .243 and fortunately it has the extractor. I've converted my old H&Rs to extractor and never could understand why H&R didn't build them that way from the get-go, if I can do it with simple hand tools, it should be very much easier for the factory. My extractor modification will lift the case slightly higher than H&R's new extractor but then with mine the spring takes over once the extractor has broken the case loose and will toss the case on clear of the gun. I use a much lighter ejector spring than the original H&R since it has the primary extraction done and I don't need the ejector to fling the case thirty yards.