The ratio (neck diameter/base diameter) of the 1846 bottle is closer to the standard magnum than that of the standard bottle.
1846, a bottle specific to Champagne Bollinger, will thus be used for the whole range: Special Cuvée, the first bottles of which are now being launched, followed by La Grande Année, La Grande Année Rosé, Bollinger R.D. and Vieilles Vignes Françaises. La Côte aux Enfants will keep its traditional bottle.
The new bottle shape is also available in all four formats: half-bottle, bottle, magnum and jeroboam
The pictures and chart are interesting. Obviously, the adoption of the new bottle took place four years ago, as the Special Cuvee Brut arriving in August will be in the new bottle.