The Winchester AA Super Sport line of shotshell ammunition is the result of more than 140 years of expertise and experience. These AA target loads from Winchester deliver a new standard of excellence outshining the competition in terms of velocity accuracy and shot patterning. If you are in the market for a top-quality sporting shotshell look no further than the Winchester AA Super Sport line of shotshell ammunition. Available in 12-gauge 20-gauge 28-gauge and .410 bore there is a shotshell for all weapons and every type of hunter. Why buy any other brand?