This is 20 Gauge Hornady 250gr. SST Sabot Slug. It's only natural that the proven performance of Hornady's SST bullet enter the world of shotgun hunting. This slug allows you to bring unheard of accuracy and terminal performance to slug-only areas. The super-accurate SST bullet delivers sub-2" groups at 100 yards; and the flattest trajectory on the market. Designed for use in fully rifled barrels only. This ammo is packed in 5rd. boxes.