This a bit out of the usual. I have a couple a small smoothbore cannon that I take out to my club and shoot at berms but I have one that doesn't work.
My club is out on the plains so if something leaves the range it can really travel. I did a couple of live fires there at a 100 yard range with massive berms but it is capable of more. The officers of my club felt, and I agree, that using the other ranges there is unsafe. It needs a really good backstop - like a mountain.
I have a reproduction of a Civil War 2.25" Bronze Mountain Rifle. It is made with modern techniques so it is pretty safe to shoot. It is rifled and I have a mould for casting lead Minie ball rounds that work with the rifling. The rounds weigh a bit over 4 pounds. I have light ones for a 200 yard or so range and rounds with heavier skirts for long range with heavy powder loads.
A backstop would give me a nice feeling that I know where the round ends up. It would also be great to salvage the lead since it costs.
It produces a heck of a muzzle flash but as long as I'm not sitting in dry grass there is little fire danger. I put the powder in aluminum foil so it won't fire burning junk out the barrel. It would be good if the shooting spot was fairly flat and level. I've made plywood targets that I attach 2x4 to and stake the 2x4 into the ground with rebar.
Any suggestions of a place?
Steve