Thanks for the thoughts. After looking at the shotgun more closely, which I haven't done for a long time, I find that the firing pin must have just fallen out. It is a cock to shoot, JC Higgins Model 101.1. It looks like this would be easy to repair.???? The shotgun has been mine since it was new so I know it wasn,t removed for safety. Do you think this would be something I could reair myself?????