Paraphernalia - Bullet: How cocaine much in a "bullet"?

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Hello


I'm trying to figure how much cola can fit inside a bullet snorter (the acrylic one with the glass beaker).


I don't have a scale to weight the amount of cola, so I need a way to find out. I was wondering the following.


What if I find out how many ml of water can fit in, could I somehow calculate the amount of coke?


For example, I get an IV needle and take out the water inside the container and then read on the needle's scale the amount. Then, how could I find out how that equals in coke?


Please, help needed!