This is NobelSport 12 Gauge Law Enforcement 27 pellet #4 Buckshot. This ammo is manufactured by NobelSport in Italy for military and Law Enforcement use. These loads utilize perfectly matched wads and specially selected propellents to attain the best recoil to velocity ratios. This ammo is for 23/4" chambers and is stamped law enforcement. It travels at 1290fps and has a very tight pattern. It is perfectly legal for you to own this ammo, NobelSport sells most of this ammo to Law Enforcement and military agencies, that is why it is stamped law enforcement. They use better components in this ammo than they do in their regular buckshot ammo, this is some of the best buckshot you can buy. It come packed in 10rd. boxes, 250rds. per case.