I have two Model 60's and both like to jam more than I am happy with and have had this problem since I have owned them (both were purchased used). Instead of ejecting the shell out the ejection port, both guns at time will have the fired casing stay inside the ejection port and jam the rifle. I disassemble the rifles after shooting, clean all parts, and lightly oil them before reassembly. Any help rectifying this problem would be greatly appreciated.