Re: H&R model 922 questions
The H&R 922 is a solid frame revolver. It is a double/single action, so you have a sear problem, probably a weak or broken spring. Your ejector is the cylinder pin, used to push out the empties from each chamber. Then you reload and reinstall the cylinder. These were manufactured from 1927-1952. Without a hint of your serial number, there is no way to date your revolver. If you are reluctant to post the serial number, then just list it with the last digits represented by XX.
Old Gun Guy