Winchester Ammunition AA Supersport Sporting Clay, 12 Gauge 2.75, #8, 1 oz, 3 1/2 Dram, 25 Round Box AASCL128 Since 1965, AA has been recognized as one of the finest quality target shotshells ever developed, continuing the Winchester tradition of legendary excellence with unparalleled target-breaking performance that revolutionized the target shooting and reloading industry.