t has always made sense that barrel should be more volume then the chamber because of the expanding gases during combustion. You're right, but a barrel shouldn't be of much larger volume than the chamber because the pressure would decrease too much. If you were to make the barrel out of a stronger ...

Well if I was smarter I'd do the math but ow my head hurts already just thinking about math. It would be cool if we had some sort of computer model showing how the flame spreads out from each ignition point. Agreed on both counts. As it is my math is shaky enough, I do all my calculations 3 times j...

bigbob12345 wrote:putting it in the middle would create more pressure faster.
me.

Hmm, that does seem to makes sense. Can anyone second this?

Jon_89 wrote: For one spark I would put it about one third of your chamber length from the end.

Which end, and why 1/3?[/quote]

I tried searching for this, but I couldn't find anything. My question is, where in the chamber should the ignition source be? I'm thinking as far back as possible, so that as much gas as possible is used to propel the round. Am I right in this assumption? A graphic in case my explanation sucked xD $...