Hey all. I'm new here and new to double rifles. I picked up one with mixed hammers and a 2 leaf rear sight. Safeties and hammers work fine. Excellent bore with 9 wide grooves. One firing pin isn't retained. Will that cause an issue when firing? Has anyone got a split 500 case that I could buy? I don't want to buy 20 if I'm wrong on the caliber. The chamber is approximately 2.5". The barrels have 3 proof marks and the number 39 on the bottom flats. Marked Thomas Turner on barrels and locks. Tight as a bank vault. I was told made in 1875 but I can't seem to find out much about the maker. Any help will be appreciated. Unfamiliar with posting pictures.
