Help with making a bamboo Blowgun...?

I would like to make a 4foot bamboo blowgun, but how do I bore it out so I can use it as a blowgun?

Help with making a bamboo Blowgun...?
just cut an end to start your work. when you have it ready you will have to make a long hand drill or get one made to extend from a power drill to cut it out then you will have it evenly open. tribes used to use a piece of rock on an end of a stick to slowly cut out the few breaks in the bamboo shaft. before you start make sure you have a straight chunk of bamboo. you can use a fire to heat it up when and make is straight before it dries out
Reply:Bamboo is hollow if it is big enough.