I think it was no less than W.W. Greener who wrote that the upward force of a shotgun was so gentle he could hold one with no lock at all together with his index finger. I expect Gunmaker is correct that the problem is wear on the locking engagement...Geo

Should be simple matter to remove the toplever and take a look.

Last edited by Geo. Newbern; 03/16/20 01:57 PM. Reason: added final par.