spotted this on you tube. its a gun for radio controlled battle tanks.

how big is the propane chamber and how big is the expansion chamber? how many shots could you get?

would a setup like this be ok? horizontal is really easy to build and stream line. the blue in the pic is the liquid propane. i never thought of the liquid freezing the components thanks!!!

its a clippard 2 inch long volume chamber with a 1 3/4 diam. i am going for compactness. I wasnt sure if i could yield more propane liquid if it was vertical or horizontal. but I suppose it will fill up either way. right?

hi guys first time poster here. i have a question about a propane volume chamber for my mini spud gun. would i get better efficiency(more shots) if the volume chamber is mounted horizontally or vertically? not sure if it would make a difference? i think i could store more liquid if it was vertical b...