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SO have you tried using your straw as a blow gun? Or are you instead blowing steam?


Uh, yes. But that diameter (arrow shaft) is only good for sewing needle size darts.
I make 'em from 2" lengths of thin piano wire, sharpened, dab of cotton glued to the other end. It 'might' take down a mouse or small bird.
On my big blowguns...1/2" copper or aluminum tubing....I use full length 10" bamboo shish kabob skewers and paper cones. You can buy a handfull at Walmart/Target for a couple bucks. You can actually dart fish with that. You get a flatter trajectory with bamboo over metal due to less weight.
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paul, texas KD5IVP