i did a grand tube and the displacement of the tube is only .50ml so best guess for a mini I'm not sure because I don't have a mini bottle.
Here's the math..tube diameter is 3/16" (.1875"). Radius is.0937" A GRand bottle is 1.375" to the shoulder.
Volume of a cylinder is height x pi x radius squared
1.375x3.14x.00878=.0379 cubic inches
Have to subtract the inner diameter which is 1/16" (.0625")..radius .0312" so that = .0041 square inches
Total volume is .0379-.0041=.0338 cubic inches
Convert .0338 cubic inches to ml=.55ml
subtract out the 18 gauge needle which I got at .05 ml and I end up at .5 ml
I'm not sure the height of the 3ml bottle compared to the 6 ml bottle.
Different and all too .... approach.
