I have several Pedersoli 12 gauge doubles if that's what you're looking for. They are both blackpowder (percussion). I also have several double Pedersoli rifles (percussion). I think I may have a .50 caliber and a .58 but I would have to check again to make sure. I am a huge fan of Pedersoli. I guess that's pretty obvious huh? They are great guns...very well made. I am looking to debulk some of my doubles I don't use. I shot a bear and a big buck in the same year with a .72 caliber Pedersoli that I also own. Now, that is an awesome weapon. Blew a hole right through both of them. Please email me direct if interested at [email protected] because I probably won't check back on this thread. I would be happy to take some pics if you'd like.