robhof
That's alot spiffier than my old cast iron cannon. I did experiment with percussion ignition awhile back using a nipple with the threads ground to fit into the touch hole(didn't want to tap the cannon and it not work) held it on with pipe clamp drilled to fit top of nipple through, fired it with hammer taped to end of broomstick, it worked when I made contact with the cap, went back to fuses, more reliable.
That's alot spiffier than my old cast iron cannon. I did experiment with percussion ignition awhile back using a nipple with the threads ground to fit into the touch hole(didn't want to tap the cannon and it not work) held it on with pipe clamp drilled to fit top of nipple through, fired it with hammer taped to end of broomstick, it worked when I made contact with the cap, went back to fuses, more reliable.