Quote: These are "GOOD OLD BIG ONES." The muzzles of my 12 bore T. Horsley & Sons, which I use as my symbol on NE.com.
Curl
WOW - look how thin/narrow/fine those lands are. Appears Forsyth-style rifling from the mid 1850's, as detailed in his book, "The Sporting Rifle and it's Projectiles".