Who's running a 10-gauge?

[Bull Durham]

I shoot an original Colt 1878 in 10 gauge. The gun was made in 1881 and came with 32 inch barrells, which I still have. All of the numbers match. I found a set of barrells that came off a gun that was made in 1882. I had that set cut down to 20 inches and then I fitted them to my gun. You know your shooting something when you fire it.