I used to carry my Smith 686 and I had one of the Cor-Bon loads that met the minimum hunting requirements in it; I just put the rest of the box in my hunting pack so if there was any question I could show them the box. I don't know about the Buffalo Bore, but the Cor-Bon has the energy info on the box flap.

Now I carry my G20 with a 6" barrel, and do the same thing.