I find this puzzling; I have a gun which had, for a time (it is now sorted) a light strike on the left barrel. I had a considerable number of misfires (gun used for clays on a range) and NEVER a hang fire. When it missed, I did wait a while before opening, but it NEVER fired late.
I have heard of hang fires of a fraction of a second, though never experienced one myself. I have also a few times on different guns had (and seen others have) the primer only firing, which has left the wad in the barrel - needing pushing out with a rod.

Last edited by JohnfromUK; 12/02/15 05:02 PM.