hey i already suggested that air is the way to go if your a newb

very interesting idea, if it develops a bit further pleze post, looks to be quite promising for countries that have a complete ban on guns in any form

Cheers

If you can't get it started on 15% nitro just build a simple pnemutatic all you need is a tubeless tire valve a .5 inch to 2 inch pipe one end cap a ball valve either plastic or metal and you can launch things preety far, its really easy. I just use mortein to fire my combustion it works great mines...