I don't think they're particularly rare, I see them on the auction sites fairly often. I have one, and have little good to say about how it shoots, though I have killed several deer with it. I've tried all the factory loads, and a bunch of handloads, and tried all the forend tricks to get this one to shoot, but the best it will do is about 21/2" groups at 100 yards. I plan to have mine rebarreled to a .32-40 soon.
Greg