SpudFiles

I've had 16lbs of 1cm lead shot sitting around for more than a year and i need to get rid of it. I'm considering a throwback to an "old school" ball valve (spring assisted) cannon. What would be the best barrel for shooting unsabod 1cm lead shot? (1/2" copper is to big)

1/2" copper, put a piece of cloth as wadding to the barrel

thats what i was thinking but i would like to go unsaboted if i could. on another note; I'm going to go for a longer barrel (about 5' or so) so the rigidity of the copper would be nice.

bigger barrel firing shotgun style? would be awesome

I'm putting it on a stand with a recoil system (just to be cool) 8)

if you have a 3/4 inch barrel by 4 ft

take a 12 gauge shotgun case( empty and fired) grind off the metal cap on the back , fill with shot, and shoot!!!

3/4" SDR or sch 40?
heres what ive got so far. I had already had most of this figured out before i posted (i wanted a "second" opinion). Also forgive the use of my 3.2 megapixel cell phone camera, i didnt feel like pulling out my olympus pen.

Get some 12mm OD aluminium tubing with 1mm walls. Perfect fit.

With the shotgun shells; take one with you, you might need to sand out for the brass wall on the shell.

unfortunatly im not big on real "fire arms" (never shot a real gun, nor have i been around when they were in use). Basically i dont have shotgun shells or anything of that sort. I'll probably just sabot it musket style So I'll save the Al barrel for when i get access to a shop (going to get my welding ticket in a few months).

Thanks