Winchester AA 250th Anniversary Edition 12 Gauge 2-3/4in #8 1-1/8oz Target Shotshells - 10 Rounds - The Winchester AA target load, introduced in 1965, is still regarded as the most legendary shotshell in the sport. The AA has helped millions of shooters break more clays and raise the bar for performance. Features Made in the USA ; Hard-Hitting - Lead Shot Alloyed with Antimony; Excellent Reloadability - Brass Head and High-Strength Hull; Tight Patterns - AA Wad Technology; Consistent and Clean-Burning - Best-in-Class Primer and Powder;