Double-X wrote the recipe for smoking turkeys and the secret's in the ingredients. Every Double-X shotshell is packed with a bird- bagging combination of extra hard, round plated shot and a magnum load of patented Ball Powder propellant. What you have are all the ingredients for tight, dense patterns and superior long- range knock-down power. So, if you've got a taste for smoked turkey - smoke'em with Winchester Double-X Magnums.January 29, 1996.