I’ve long had a love affair with walnut and blue steel: old double-barrel shotguns, Belgian Brownings, lever-actions, bolt guns—basically anything made before I was born, which was 1963.

The specs for an Old West coach gun are fairly liberal yet specific. They were generally side-by-side double guns in 12 or 10 gauge, and occasionally 16 gauge, with barrel lengths anywhere from 12 to ...