Winchester Ammunition AA Target, 20 Gauge, 2.75, #7.5, 2.5 Dram, 1 oz., Shotshell, 25 Round Box AAH207 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.