Today at a gun show i picked up a derringer. Traditions vest pocket .31 caliber. I need some info on it. I went to Tradtions web site not much there. I check on the web Blah Blah Blah about the same. Everything gives me the caliber, how long the barrel is, the fake ivory grips. But not the info I want such as: how much powder, what the heck the screw out rod below the barrel is for, effective range, ball size. What to use for a ramrod. Anyone have any info? This pistol is in like new condition I bought it for a whooping $55.