24x110mm 20mm Shell (firecracker powerd)

This is my 24x110mm Shell for 20mm Projectiles the depth is 70mm, its powered by a firecracker use the propellant guide to insert a firecracker, put a projectile of choice in there (have some designed on my acc) then shorten the fuse and put a cap gun cap into the bottom or ignite it directly. I would be happy if someone designed a system around it and if someone has questions, just ask. !only for educational purpose! !dont use it to harm you or others!