marble spud gun cheytac m200 style

[jackssmirkingrevenge]

More than one shot per fill? Either you have too much fuel, or it,s not mixed properly.

Can you draw a diagram of what your chamber looks like.

Also, how did you calculate the volume? Is you chamber long an thin that has pockets where gas can accumulate?

[mark.f]

It sounds like you're using too much fuel. From what I can see you should be using ~17.5 mL of butane for that chamber size. Have you installed a chamber fan yet?

[satriyo]

this is my chamber design : http://adf.ly/UfOoI

no i have not. i'm not yet get the fan. i'm still blow air from my mouth. sometimes i use cool pad for my laptop as the fan.

[mark.f]

The fan does more than just air the chamber out, it helps get an even mix inside the chamber before you fire.

[satriyo]

does my chamber is too long? so that's make not total combustion?