This is a Winchester Ammunition Shotshell known as the Super-X chambered in 16 Gauge 2.75", model XU166.
Since 1922" Super-X ammunition has provided exceptional quality and outstanding performance for all types of hunters and shooters who rely on its time-proven dependability backed by legendary excellence.
Features:
16 Gauge
1,165 Feet per second
2-3/4 Inch
1 Ounce #6 shot
25 Rounds per box