Hello! Long story short. I recently came to realize that these little N20 steel cartridges are potential ammo (empty 8gram ones) if used in a proper launcher. PIC: http://www.cookworks.ca/site_assets/www.cookworks.ca/images/dynamic/products/574357.jpg And they can also be modified to be even more dangerous by filling them up with lead (or other heavy objects) and you would have extreme heavy ammo, that would in my mind atleast be devastating! And also fun to experiment with different ammo types (some cartridges that only got lead in tip and some solid ones etc) It would be fun to see if yall came across some cool ideas for this, or even make one of your own and share video. Which I hope to do myself soon. But it will take some time because i lack time and workspace. but will give it my best! I really hope someone have time and workspace to make this before me though. Cheers Redlöse Bob.