This may not be the best practices model but I do use screw top 40OZ for bottling when my glass stock is low. I'm sipping a year old mead right now from a 40 and i have to say, for a two dollar beer and bottle, the pressure inside was loud enough for the neighbors to hear. It has even worked for bottle conditioning of ales. I would be very cautious of your FG so that you dont create a hazard but in general it can be done in tight budget conditions. PS santize very very well.
....just add water.....