No magic to it, your just after a good healthy spark into the middle of the pan! As forI played around and messed up my flint. I have quite a few black snd amber color.
Didn't know if I was going to get it right or not. It either hit the frizzen straight on or way low and wouldn't knock frizzen open. The worst thing was all the flints look the same size as old one side by side. I turned them flipped them held v them out a little to make the work as if they were longer. Ended up getting it but the flint is upsidedown.
Lowering the hammer the flint hits 3/4the way up and the hammer/flint have a slight angle downward. Is it always like this?
Large siler
Flints are 3/4 wide and 7/8 long (correct) for lock?
The one on right was original and I knapped it once successfully and then today messed it up.
Flint-Knapping, find one you don't care so much for and practice on it. Take a look at Duelist1954 video on YT "Putting the Flint in Flintlocks" it's a good one to learn from.