Winchester 20 Gauge 2 ¾” AA TrAAcker Shotgun ammunition is recognized as one of the best target shotshells ever made. This revolutionary 20 gauge Winchester AA TrAAcker ammunition features Notched Helical wad Petals that stabilize the wad forcing it to travel in the center of the shot pattern. AA TrAAcker wads patented design ensures wad tracks in the center of the shot pattern and is visible in variable light conditions. The Shot Trap captures a small portion of shot, and ensures wad tracks within the pattern down range.