This is a Winchester Ammunition Sabot Slug known as the XP3 chambered in 12 Gauge 3", model SXP123.
XP3 ammunition combines the most advanced bullet technology developed by Winchester. It delivers precise accuracy" awesome knock-down power" and deep penetration. XP3 ammunition sets the standard for hunting and embodies the quality and innovation Winchester is known for worldwide.
Features:
12 Gauge
2,000 Feet per second
3 Inch
300 Grain high velocity Sabot slug
5 Rounds per box