Pedersoli Flint Lock Mortimer Rifle

[series2a]

I think the jury is out about using leather or lead for the flint.
Personnaly I prefer leather, it works if it is tight. I found that the flint slipped when using lead. Each to his own.

I use a thick hatpin for clearing the vent hole. You can also use tungsten wire that is inside some washing lines.

Leaving the pin in creates a void for spark expansion hence greater area to ignition.
Leather has been proven in tests in US as inferior to soft lead .