The TTn longer barrel was short lived, not many were imported. I think only Cimarron had them
Rowdy got one, and gave a heads up on this BB, but when I called they had none left
Now I don't think you'll see even the 20"ers imported again
You could hunt around, Rossi did make a Longer 28" hammer double ( for me it just has to have hammers )
They ceased in about 2000
Like Jeff said ... Pedersoli makes a REALLY cool 10 Guage (but it is a muzzle loader)
Perfect for Pistoleer, Dave, you might remember Cherokee Bill shot one at your first shoot.