Ducks Unlimited Shotgun Shell Single Malt American Whiskey 750ml

It looks like you're asking about the Ducks Unlimited Shotgun Shell 750ml. However, there seems to be a mix-up with the item name, as there isn't a widely recognized product called "Shotgun Shell 750ml" from Ducks Unlimited.

Ducks Unlimited is a nonprofit organization focused on wetland and waterfowl conservation, and they often collaborate with brands to produce various hunting-related gear, including apparel, ammunition, and accessories. It’s possible you're referring to a specific item, like a themed flask or collectible, but 750ml would usually relate to the volume of a bottle, which might be a special edition item or a drink container.