Found an article in the December 2015 Handloader magazine that is on reloading the .577 Snider. It has a couple of photos of a Purdey double rifle also made in 1867 to shoot the Snider. Very similar to mine, not the same engraving style. Yes, Tinker those bullets I sent to you. Got 20 more Snider brass cartridges last night, Jameson brass and they fit perfect without sizing!