Doing some clays the other day I found that my right barrel sometimes didn’t fire. It just clicked. On inspecting the cartridges the indent was there but it wasn’t deep enough. So it looks like a new pin was required. I had some stock steel in the workshop so cut a suitable length and used the lathe and a micrometer to make the basic pin shape to the correct size. Once it was the right size I cut the pin to the right shap plus 2mm on the hammer end. This is the end that had mushroomed over use and render the pin unreliable.
The pin is then shaped and sanded to a polish. Once happy with the lenght, and you should fit the pin many times to make sure that the hammer releases slightly off the pin when fired, you can harden then temper the pin. To harden. Use a torch and get the pin cherry red. Once cherry red drop or hold the pin in a good oil. I use a spring oil. Let the part cool completely. Once cooled cleaned it off with wire wool to a nice shiney finish. Then again, heat the part, this time watch the colours and get it to a purple/light blue and then once at this temperature remove the part from the heat. This is now tempered. Polish when finished and fir to the gun. There a new pin…will try it as soon as I can!