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Overhill · December 31, 2011, 02:59 PM

1861 is the manufacture date. It's still a pattern 53 which were all rifled and .577 caliber. A swamped barrel is one that starts out big at the breech and tapers down towards the middle and then starts to swell back out towards the muzzle. They are all smooth bores. There were thousands of Enfields and Springfields with the rifling bored out and turned into shotguns after the war.

I think you may have nailed it. The muzzle does vary in Dimensions . I thought is was some sort of jug choke. i still wonder what gauge it is.

December 31, 2011, 02:59 PM	#7
Overhill Member Join Date: March 1, 2007 Location: PA Posts: 96	1861 is the manufacture date. It's still a pattern 53 which were all rifled and .577 caliber. A swamped barrel is one that starts out big at the breech and tapers down towards the middle and then starts to swell back out towards the muzzle. They are all smooth bores. There were thousands of Enfields and Springfields with the rifling bored out and turned into shotguns after the war. I think you may have nailed it. The muzzle does vary in Dimensions . I thought is was some sort of jug choke. i still wonder what gauge it is.