A shotgun shell or shotshell is a self-contained cartridge loaded with lead shot or a shotgun slug which is designed to be fired from a shotgun. Most shotgun shells are designed to be fired from a smoothbore barrel, but dedicated shotguns with rifled barrels may take a number of different rounds. A rifled barrel will increase the accuracy of slugs, but makes it unsuitable for firing shot, as it imparts a spin to the shot cup, causing a centrifugal force that makes the shot form a hollow "O" shap
The most bizarre military shotgun ammo ever
Großer Kurfürst - Global wiki. Wargaming.net
The Chechnya Conflict
The most bizarre military shotgun ammo ever
5 Rounds of Bulk 12ga Ammo by Winchester - 00 Buck
Shotgun shell, Military Wiki
Long Guns: A Century of USGI Shotgun Ammo - SWAT Survival, Weapons
Decorated - Official TF2 Wiki
What are some military grade shotgun shells? - Quora