... 4OZ, , 8OZ, good quality and competitive price A Boston round bottle, or Winchester bottle, is a strong and ... for closing with a screw cap. Boston round bottles, also called Boston rounds, are bottles with rounded ... product can be placed them.The necks of Boston round bottles are normally very straight. They ... 8 ounces (236.6 ml) of material.Boston round bottles normally have a narrow mouth. This ...