Gallery gun

[1][2] These guns were developed in 1845, when French inventor Louis-Nicolas Flobert created the first rimfire metallic cartridge by modifying a percussion cap to hold a small lead bullet.

[3] Gallery guns are still manufactured, although by the late 20th century, they have been eclipsed by airguns for the purpose of indoor shooting.

[4] Gallery guns are smallbore, single-shot or pump-action rifles, typically chambered in .22 Short.

[9][10] Parlor pistols came into fashion in the mid-19th century; they typically featured heavy barrels and were chambered in a small caliber.

[12] Saloon guns were smoothbore weapons that fired 6mm Flobert rounds,[13] but can refer to a large caliber firearm that was made to shoot a smaller caliber round in indoor shooting galleries by use of a chamber insert called a Morris tube.

Colt Lightning gallery gun
Winchester Model 1890 gallery gun
Picture of a 6mm Flobert pistol, together with its description in the 1912 catalogue of the Manufacture Française d'Armes et de Cycles de Saint Étienne
Remington Rider single shot pistol