Shell, Types, Calibers, Uses

Shell, variously, an artillery projectile, a cartridge case, or a shotgun cartridge. The artillery shell was in use by the 15th century, at first as a simple container for metal or stone shot, which was dispersed by the bursting of the container after leaving the gun. Explosive shells came into use

MultiBrief: A brief history of modern .30 caliber rifle cartridges

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Definitions and Information about Naval Guns - NavWeaps

What is Caliber and What Does It Mean for Shooting?

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Bullet Sizes vs. Bullet Caliber, How Do They Name These Things?

Artillery Ammunition Comparison (by Caliber)

Shell, Types, Calibers, Uses

Why do pistols have less power than rifles of the same caliber

Bullets: Sizes, Calibers, and Types [Guide + Videos] - Pew Pew

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Naval Guns, Inside and Out Naval History Magazine – October 2021