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Buffalochip · 02-06-2011, 05:51 PM

Is it a smooth bore? Does it have front and rear sights? If yes to both, it is a smoothbore musket, not a shotgun. If no rear sight, but a bead on the front, it is a shotgun. A 20 gauge is about .61 caliber or .61". Your measurement shows it to be a .66 caliber.

02-06-2011, 05:51 PM	#4
Buffalochip Senior Member Join Date: Oct 2008 Posts: 754	Re: Flintlock caliber? Is it a smooth bore? Does it have front and rear sights? If yes to both, it is a smoothbore musket, not a shotgun. If no rear sight, but a bead on the front, it is a shotgun. A 20 gauge is about .61 caliber or .61". Your measurement shows it to be a .66 caliber.