at some point I'm hoping to look at making a "working" 2" mortar (to be used with site permission of course!)
They already exist, using the TLSFx system.
Aye, but they use a 2 part pyro, and may be bulky(?). I'm hoping for something a bit closer to the original but still legal- I really don't want to get on the wrong side of a mandatory sentence and end up being friends with someone calling themselves "Bubba"
My Brit 2" Mortar's indistinguishable from the real thing, unless you look down the bore and see the internal sleeve. The only thing it doesn't have is the manual striking mechanism, and that's internal anyway.
Before it was painted (can't find a painted photo on the laptop):
I did see that, a beautiful piece of kit if I may say so 
What I'm thinking of is not actually pyro based
compressed air and CO2 have been tried with mixed results. CO2 tends to freeze things up and comp air needs a reservoir.
Good luck with your efforts. Non pyro solutions would be very handy.
aka Stigroadie
AFRA
better by design
"Truth is a shining goddess, always veiled, always distant, never wholly approachable, but worthy of all the devotion of which the human spirit is capable. "
