if you modify the lock a little and drill a #1 hole for the touch hole you can use .22 nailgun blanks i use them in one of my mortars and get excellent results from pyrodex and with the stonger blanks you dont need hardly any powder if any at all
cannon looks awesome by the way
Freek, that has to be one of the best ideas I have heard on here yet. This way one doesn't need to remove a nipple to switch to using a fuse. Maybe also thread a screw into the business side of the hammer to keep the brass from mushing. And... the the cartridge is probably long enough to secure the lock into place so that no screw is needed right? Just as long as it fits snug enough in the hole...
What I would really like to do is figure out a way to spring load the hammer.