Too bad, but I really like the idea of the old 16-gauge. Part of the problem is the size of everything: just a bit smaller than a 12, but still bigger than a 20.
Since the 12-bore cartridge gun has become almost universal, it has kicked the heck out of ANYthing 16, despite the fact that even a 16 cartridge gun is a lightweight and relatively easy to pack around.
I have a little Settlement period (late 1880s in this part of the world) 16 double cartridge gun here. Obviously it is a lady's gun, but the lady in question certainly had taste. Banknote-quality engraving, nice wood with a single flaw, excellent finish, cheekpiece, tight action, Black-powder proofs, thing throws up to your shoulder perfectly, light enough to track chicken. I paid 35 bucks for it, couple of years ago. Nice point is that it is still legal for chicken and pheasant, although not for waterfowl.
There are lots of these old guns out there and most of them are dirt cheap. I mean, after all, WHO would possibly want a 16???? Well, apart from you and me, that is. Just gotta recognize one when you see it.... and be prepared to deal.
BP cartridge guns can be a lot of fun to shoot, too.
Just sayin'.......