I bought a 1858 Remington blackpowder .44 replica a little while ago, and the damn thing failed right out of the box. I take it out, wipe it down with a rag, and cock the hammer. As I'm cocking it, there's a noise like metal grinding against metal, and the hammer locks back. Trouble is, the trigger won't release the hammer. It's stuck in the cocked position. Anyone on this board know anything about these pistols?