Patruunoilla

Patruunoilla is the instrumental plural form of the Finnish noun patruuna, meaning cartridge. In Finnish grammar, patruunoilla is used to express means or accompaniment with cartridges, for example in contexts describing equipment, handling, or actions performed using ammunition. The corresponding singular instrumental is patruunalla, and the genitive is patruunan.

A patruuna refers to a complete cartridge used in firearms, typically consisting of a case, propellant powder, a primer, and a bullet. Cartridges are commonly categorized by the type of ignition (centerfire or rimfire) and by caliber, which denotes the bore size they are designed to fit. Rimfire cartridges place the primer in the rim of the case base, while centerfire cartridges use a separate primer located in the cartridge head. Different calibers are used for various firearms, from small calibers designed for handguns to larger ones for rifles or specialized weapons.

The term patruuna is widely used in firearm terminology in Finnish, and patruunoilla appears in technical, safety, and regulatory discussions. It is distinct from kuula (the bullet itself) and from patruunaosat described separately (case, primer, powder) in more detailed effor ts to discuss ammunition construction.

Etymology: The Finnish word patruuna is likely borrowed from Swedish patron/patron or German Patrone, reflecting the long-standing cross-European terminology for ammunition. The instrumental ending -illa follows standard Finnish morphology for indicating means.

See also: patruuna, ammuntion terminology in Finnish, Patrone (historical cross-language cognates).