Winchester Bismuth sets a new standard in performance with its premium, uniform shot, designed to exceed expectations. Tin-plated for a smoother, rounder finish, it delivers the finest bismuth shot in the industry. To maintain consistent shape and uniformity, Winchester incorporates a buffering compound that fills voids within the shotshell and cushions the shot upon ignition. This ensures optimal shot performance, offering enhanced pattern density and reliable accuracy for a more successful hunt.