52caliber
52caliber is a term with multiple, unrelated uses, and there is no single canonical definition that applies in all contexts. In firearms terminology, caliber refers to the bore diameter of a gun, typically measured in inches or millimeters. A designation such as .52 caliber indicates a bore diameter of 0.52 inches. Such calibers are relatively uncommon in modern mass production, but they have appeared in historical muzzleloaders, custom firearms, and experimental designs. Because “52caliber” lacks an official standard meaning beyond the bore size, its interpretation depends on the context in which it is used.
As a proper noun, 52caliber is also used as a brand name, username, or project title by
There is no single authoritative article that consolidates all uses of 52caliber, since meanings vary across