I have an almost finished plan but some parts are gonna be hard to make and also how to fill, i was thinking that if i use a nail at the end of a co2 cartrige that if it slams the ground (relitively soft dirt from about 10 ft) it would punch a hole in it then its own force would remove it from the nail. Also i think it would be best to have each have a air nozzle that is in each load so that it is self propeled and can launch farther away i need some help but it is almost finished heres a pic.
the internals are about lined up with how they will be in place but they are to the right so that you can see them, Top internals : mushroom press plate, co2 holder(to be sealed with o rings), pin cap, around the pin cap is the air chamber, attatched to that is the burst disk holder block with barrels (in real life there should be about 8 - 16 ) with o rings. bottom internals:holding tank. Also that bottom disk is to aim the pressure and put on a burst disk.(to be set off bu a hammer system
)
the internals are about lined up with how they will be in place but they are to the right so that you can see them, Top internals : mushroom press plate, co2 holder(to be sealed with o rings), pin cap, around the pin cap is the air chamber, attatched to that is the burst disk holder block with barrels (in real life there should be about 8 - 16 ) with o rings. bottom internals:holding tank. Also that bottom disk is to aim the pressure and put on a burst disk.(to be set off bu a hammer system 
