Like rifles, shotguns have a data stampStamp on the firearm's barrel, and on the base of the ammunition indicating caliber or gauge. usually located on the right or left side of the barrel. It indicates the gaugeThe number of lead balls of diameter equal to the size of the firearm's bore, required to weigh one pound. and maximum length of the shotshell that can be fired safely. Gauge and shell length are also shown on the shell base and box.
A shotgun used for shot features a smoothbore barrelBarrel that does not have any lands and grooves (rifling), meaning that there is no riflingSpiraled lands and grooves inside a firearm's bore (usually rifles and handguns). Give the bullet a spin as it moves down the barrel and out toward the target, increasing accuracy.. Rifles can be used for short and long distances. Shotguns are highly accurate for shorter distances.