Stainless steel is ok, and so are any lab syringes compatible with organic solvents. I hate trying to drip out neat bromine, though. I'm a NBS man myself, when possible.
Other than that, I do use a syringe. On occasions when I've had to brominate with Br2, I have measured volume with a syringe, but immediately transferred it into solvent (CCl4 or acetic acid) and added that dropwise to my stuff with an addition funnel.