first off, SWEET forum guys, I'll be reading back posts for days...
I am building one of the posted plans for a GB mortar , do I have to use a fuse/quill? or can I just tap the flash hole for a nipple and use #11 musket caps? 209 shotgun primers? (I bet those don't even need powder to lob the ball)
I am more interested for the novelty of a pull string firing than any possible effiency gains.. just a simple gravity assist pull string and it rotates the hammer up and over center where gravity takes overthus smacking the cap.
I'll heed any safety concerns if this sounds nutz, I figure it works on my rifle why not.