![Why did many black powder and old-style firearms have octagonal barrels, but not modern guns? - Quora Why did many black powder and old-style firearms have octagonal barrels, but not modern guns? - Quora](https://qph.cf2.quoracdn.net/main-qimg-492c2ade6fe1baebda8c43c5c0c5a67c.webp)
Why did many black powder and old-style firearms have octagonal barrels, but not modern guns? - Quora
![A percussion pistol,Ulrich in Stuttgart,circa 1830.Hexagonal barrel bedded on edge with the original bluing(small scar on the right side),smooth bore in 12 mm calibre,dovetailed sights,a silver-inlaid maker's signature,"F.Ulrich in Stuttgart" on top A percussion pistol,Ulrich in Stuttgart,circa 1830.Hexagonal barrel bedded on edge with the original bluing(small scar on the right side),smooth bore in 12 mm calibre,dovetailed sights,a silver-inlaid maker's signature,"F.Ulrich in Stuttgart" on top](https://c8.alamy.com/comp/BRG3M9/a-percussion-pistolulrich-in-stuttgartcirca-1830hexagonal-barrel-bedded-BRG3M9.jpg)
A percussion pistol,Ulrich in Stuttgart,circa 1830.Hexagonal barrel bedded on edge with the original bluing(small scar on the right side),smooth bore in 12 mm calibre,dovetailed sights,a silver-inlaid maker's signature,"F.Ulrich in Stuttgart" on top
![Black Powder - Fillipletta Revolver - Made in Italy, Octagon Barrel - 44 Cal - SN: 295921 - Adam Marshall Land & Auction, LLC Black Powder - Fillipletta Revolver - Made in Italy, Octagon Barrel - 44 Cal - SN: 295921 - Adam Marshall Land & Auction, LLC](https://auctioneersoftware.s3.amazonaws.com/mar/2022/1/medium/8772QWojRBauNUS-RmY5CN3s.jpeg)
Black Powder - Fillipletta Revolver - Made in Italy, Octagon Barrel - 44 Cal - SN: 295921 - Adam Marshall Land & Auction, LLC
![Barrel Nut, Kit de Pernos y Tuercas, 10 Piezas M6 Tornillos de Cabeza Hueca Hexagonal Tuercas Kit de Tuercas de Perno de Barril para Literas Cuna de Muebles, 120 mm : Amazon.es: Barrel Nut, Kit de Pernos y Tuercas, 10 Piezas M6 Tornillos de Cabeza Hueca Hexagonal Tuercas Kit de Tuercas de Perno de Barril para Literas Cuna de Muebles, 120 mm : Amazon.es:](https://m.media-amazon.com/images/I/61DTrbmpTbL._AC_UF1000,1000_QL80_.jpg)